{"title":"Oskar van Deventer","description":"\u003cp\u003ePuzzles designed by Oskar van Deventer\u003c\/p\u003e","products":[{"product_id":"extremely-satisfying-fractal-jigsaw-puzzle","title":"Extremely satisfying Fractal Jigsaw puzzle","description":"\u003cp\u003eFractal Jigsaw is a confusing puzzle that has 11 unique fractal pieces. This makes them hard to distinguish and place. To make things more confusing, the board has no rotational symmetry, despite its symmetrical look. The puzzle has the fascinating property that pieces seem to disappear when placed. Watch the attached video. \u003cbr\u003e\u003cbr\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: HDF \u003cbr\u003eSize: 250mm x 235mm x 6mm (9.84in x 9.25in x 0.23in)\u003cbr\u003e\u003cbr\u003eWatch my video with the Fractal Jigsaw puzzle - \u003ca href=\"https:\/\/www.youtube.com\/shorts\/7ygeZ4M5aks\"\u003ehttps:\/\/www.youtube.com\/shorts\/7ygeZ4M5aks\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Light","offer_id":51089033101654,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true},{"title":"Dark","offer_id":51089033134422,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/bc9cf79e-il_fullxfull.6585720614_744j.jpg?v=1755618614"},{"product_id":"match-the-colors-of-disks-and-spinners-serendipitous-diskovery-puzzle","title":"Match the colors of disks and spinners. Serendipitous Diskovery puzzle.","description":"\u003cp\u003eSerendipitous Diskovery is another amazing creation from Oskar van Deventer. The puzzle has 4 spinners and 20 disks. Each disk contains 10x1-millimeter magnets. There are also ten 10x1-mm magnets embedded in the frame. When one of the four rotors is turned such that the void goes over an embedded magnet, then the adjacent magnetic token will jump into the void. So the puzzle is played by only turning the rotors without touching the tokens. The one-way jumps of the tokens make it impossible to simply \"undo\" a wrong move. \u003cbr\u003e\u003cbr\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003e\u003cbr\u003eWatch my attempt to solve the Serendipitous Diskovery puzzle - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=ATTHDOnPmTI\"\u003ehttps:\/\/www.youtube.com\/watch?v=ATTHDOnPmTI\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089033199958,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/1dfa71db-il_fullxfull.6817468686_2vn0.jpg?v=1755618614"},{"product_id":"marble-castle-24-seconds-long-track-for-a-marble","title":"Marble Castle XL","description":"\u003cp\u003eMarble Castle is a 3D-printed marble track. The ball runs from the top center all the way down, over the castle wall, into the back gate and out through the front gate. \u003cbr\u003eThe XL version took over 40 hours to print. It used 1300 grams of filament. I used rainbow filament for the castle.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eSmall version: 114x127x126mm. Weight: 180g. \u003cbr\u003eLarge version: 159x178x177mm. Weight: 480g. \u003cbr\u003eXL version size: 228x254x252mm. Weight: 1.3kg.\u003cbr\u003e\u003cbr\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWatch my Marble Castle video - \u003ca href=\"https:\/\/youtube.com\/shorts\/k-Ap8JtJA-w\"\u003ehttps:\/\/youtube.com\/shorts\/k-Ap8JtJA-w\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Small","offer_id":51089033560406,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true},{"title":"Large","offer_id":51089033593174,"sku":null,"price":70.0,"currency_code":"EUR","in_stock":true},{"title":"XL","offer_id":51089033625942,"sku":null,"price":130.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/d27fb7bc-il_fullxfull.7140421519_apxt.jpg?v=1763063412"},{"product_id":"chained-square-can-you-fit-the-puzzle-into-a-frame","title":"Chained Square. Can you fit the puzzle into a frame?","description":"\u003cp\u003eChained Square has 16 squares that are connected with ball chain. This gives it great flexibility, as observed by Peter Knoppers. The goal is to fold a 4x4 square. The puzzle has several other challenges as well. The puzzle is difficult because of the tetrahedral topology of the weave pattern, and the lack of \"simple conventional\" solutions.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA\u003cbr\u003e\u003cbr\u003eWatch how I solved the Chained Square puzzle - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=tC_elP9l1RM\"\u003ehttps:\/\/www.youtube.com\/watch?v=tC_elP9l1RM\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089033265494,"sku":null,"price":24.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/93b1dce7-il_fullxfull.7092907008_qtqp.jpg?v=1755618614"},{"product_id":"plunging-piston-puzzle","title":"Plunging Piston puzzle.","description":"\u003cp\u003ePlunging Piston is a two piece take-apart puzzle. The pink piston is inserted into the beige tube, where it locks in place in a mechanism that uses magnets and metal balls. The objective of the puzzle is to find a way to remove the piston.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003eSize: 205mm x 72mm x 72mm (8.07in x 2.83in x 2.83in)\u003cbr\u003e\u003cbr\u003eWatch my video about the Plunging Piston puzzle - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=Y7gHnEw-94A\"\u003ehttps:\/\/www.youtube.com\/watch?v=Y7gHnEw-94A\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089033888086,"sku":null,"price":50.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/d4e64e18-il_fullxfull.5865306790_ne9k.jpg?v=1755618613"},{"product_id":"ziggustretch-puzzle-take-it-apart-and-assemble-back-together","title":"Ziggustretch puzzle. Take it apart and assemble back together.","description":"\u003cp\u003eZiggustretch is a binary puzzle, inspired by Bram Cohen's Ziggurat puzzle. It has exactly the same number of moves, as it can be considered a wrapped-around version of it. The puzzle is \"binary\", as the number of moves doubles with every extra piece added.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003eSize: 242mm x 50mm x 50mm (9.5in x 1.96in x 1.96in) \u003cbr\u003eWeight: 210g\u003cbr\u003e\u003cbr\u003eWatch my attempt to solve the Ziggustretch puzzle - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=G4WpW6Vi87Q\"\u003ehttps:\/\/www.youtube.com\/watch?v=G4WpW6Vi87Q\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034051926,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/936418d3-il_fullxfull.6154012229_8w7d.jpg?v=1755618614"},{"product_id":"zigguchain-puzzle-designed-by-oskar-van-deventer","title":"Zigguchain puzzle designed by Oskar van Deventer","description":"\u003cp\u003eZigguchain is a binary puzzle, inspired by Bram Cohen's Ziggurat puzzle. The objective is to assemble all 6 identical rings into a chain so that all the cutouts are facing sideways. As the puzzle is binary, each additional ring takes about twice as many moves, so 64 moves for six rings. If 64 moves seem too easy too you, buy an expansion set and you'll have extra 6 parts to make a 12 piece puzzle with 4000+ moves. I hope you have enough patience for that. The Zigguchain is surprisingly much harder to solve than the Zigguflat puzzle even though the solve sequence is identical.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003e\u003cbr\u003eThe puzzle is sold disassembled. \u003cbr\u003e\u003cbr\u003eWatch my attempt to solve the Zigguchain puzzle - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=CZmnT6aA6M4\"\u003ehttps:\/\/www.youtube.com\/watch?v=CZmnT6aA6M4\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Zigguchain","offer_id":51089034150230,"sku":null,"price":29.5,"currency_code":"EUR","in_stock":true},{"title":"Expansion set","offer_id":51089034182998,"sku":null,"price":29.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/9147c282-il_fullxfull.5779047129_a72v.jpg?v=1755618613"},{"product_id":"bolted-soma-designed-by-oskar-van-deventer","title":"Bolted Soma designed by Oskar van Deventer","description":"\u003cp\u003eBolted Soma is a puzzle challenge for which you do not need the physical puzzle object.\u003c\/p\u003e\n\u003cp\u003e-Go and sit at a comfortable place. \u003cbr\u003e-Read this message in full. \u003cbr\u003e-Close your eyes. \u003cbr\u003e-Solve the puzzle, without opening you eyes. \u003cbr\u003e\u003cbr\u003eBolted Soma has the regular seven Soma pieces, and nine bolts that are three units long. The Soma pieces have threaded holes through all cubies in all directions. The goal is to assemble the Soma Cube and insert all nine bolts. However, there is a special requirement: one can separate the Bolted Soma in two parts without unscrewing any bolts. Did you succeed? How long did it take you?\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eSize: 60mm x 60 x 60mm (2.26x2.26x2.26inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=_oNxyJxi7i0\"\u003ehttps:\/\/www.youtube.com\/watch?v=_oNxyJxi7i0\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034412374,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/665c8c3f-il_fullxfull.6986278613_ri2h.jpg?v=1755618618"},{"product_id":"soma-op-recept-new-take-on-a-classic-puzzle","title":"SOMA OP RECEPT - new take on a classic puzzle.","description":"\u003cp\u003e\u003cspan\u003eSOMA OP RECEPT\u003c\/span\u003e is an invention by Volker Latussek. The goal of the puzzle is to get the seven Soma pieces into their cage. However, the pieces have round pins that fit into holes in the pieces and the cage. Moreover, the lid prevents any pins from sticking out. Whereas there are many dozens of ways that the pieces could fit inside the cage, only one of those can actually be assemble. The roundness of the holes and pins is a red herring. No rotations are needed.\u003c\/p\u003e\n\u003cp\u003eDesigner: Dr. Volker Latussek and Oskar van Deventer \u003cbr\u003eSize: 60mm x 60 x 60mm (2.26x2.26x2.26inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=97cs-v-g05s\"\u003ehttps:\/\/www.youtube.com\/watch?v=97cs-v-g05s\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034740054,"sku":null,"price":30.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/825231d9-il_fullxfull.7052331134_n776.jpg?v=1755618619"},{"product_id":"soma-in-farmacia-is-much-harder-than-it-looks","title":"Soma in Farmacia is much harder than it looks.","description":"\u003cp\u003eSoma in Farmacia is an invention by Volker Latussek. The goal of the puzzle is to get the seven hollow Soma pieces into their cage. However, the cage has four pins that stick inward. Whereas there are 240x2x24=11520 ways that these seven pieces fit inside the cage, only one of those packings can be taken apart. This makes the puzzle quite challenging, also as some pieces need to move multiple steps to free other pieces.\u003c\/p\u003e\n\u003cp\u003eDesigner: Dr. Volker Latussek and Oskar van Deventer \u003cbr\u003eSize: 60mm x 60 x 60mm (2.26x2.26x2.26inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=jP6ig2kKgUw\"\u003ehttps:\/\/www.youtube.com\/watch?v=jP6ig2kKgUw\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034707286,"sku":null,"price":30.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/bac6d392-il_fullxfull.7100254415_45iy.jpg?v=1755618624"},{"product_id":"simple-looking-but-tricky-inward-ring-puzzle","title":"Simple Looking but Tricky Inward Ring Puzzle.","description":"\u003cp\u003eInward ring puzzle has 3 identical parts. It is quite easy to take apart but can you assemble it back together?\u003cbr\u003e\u003cbr\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA\u003cbr\u003e\u003cbr\u003eWatch how I solved the Inward Ring puzzle - \u003ca href=\"https:\/\/www.youtube.com\/shorts\/fCEJE3wKoNM\"\u003ehttps:\/\/www.youtube.com\/shorts\/fCEJE3wKoNM\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034772822,"sku":null,"price":20.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/e31dd73b-il_fullxfull.6956730236_6g4z.jpg?v=1755618618"},{"product_id":"hazard-puzzle-how-hard-can-it-be-to-separate-3-pieces","title":"Hazard puzzle. How hard can it be to separate 3 pieces?","description":"\u003cp\u003eHazard puzzle was designed based on the Typhoon puzzle but with only 3 parts. The objective of the puzzle is to separate the three pieces. It might looks easy at a first glance, but the challenge is that this cannot be done one link at a time. Each piece is intertwined with the other two. Once the puzzle is disassembled the challenge isn't over yet. You have to put all parts back together.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA\u003cbr\u003e\u003cbr\u003eWatch how I solved the Hazard puzzle - \u003ca href=\"https:\/\/www.youtube.com\/shorts\/FdW-qADOKZY\"\u003ehttps:\/\/www.youtube.com\/shorts\/FdW-qADOKZY\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034838358,"sku":null,"price":24.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/502033c0-il_fullxfull.6794143268_coso.jpg?v=1755618621"},{"product_id":"bolts-loop-a-puzzle-with-seriously-twisted-moves","title":"Bolts Loop – A Puzzle with Seriously Twisted Moves","description":"\u003cp\u003eDon’t let the simple look fool you. Bolts Loop is a 3D-printed mechanical puzzle with six bolts and one goal: get them all fully inserted in a continuous loop 🔁. Sounds easy? Think again. The movement is wild🤯 and deeply satisfying once cracked. Each bolt follows a bizarre, zigzagging path that will twist your brain into knots. Perfect for puzzle fans who love a real challenge and clever mechanics.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA\u003cbr\u003e\u003cbr\u003eWatch my attempt to solve the Bolts Loop puzzle - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=oR8DGAujeDg\"\u003ehttps:\/\/www.youtube.com\/watch?v=EHqqXBqckjs\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035002198,"sku":null,"price":26.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/b2241d6d-il_fullxfull.7057999035_578y.jpg?v=1755618619"},{"product_id":"soma-in-soma-double-trouble-puzzle","title":"Soma in Soma - double trouble puzzle.","description":"\u003cp\u003eSoma in Soma are two seven piece Soma puzzles, nested into each other. The outer puzzle has seven hollow Soma pieces. The inner puzzle has seven solid Soma pieces that fit into the holes of the hollow Soma pieces. Some of the beams of the hollow Soma pieces were cut, so the solid Soma pieces can slide into them. This makes it an interlocking puzzle. The puzzle is very hard to solve. Only two of the 530 841 600 assemblies can actually be taken apart. Moreover, those two assemblies are almost identical, with the inner V and inner T pieces swapped.\u003c\/p\u003e\n\u003cp\u003eMore about the puzzle in Oskar's video: https:\/\/www.youtube.com\/watch?v=SMi0CmcFr7U\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eSize: 60mm x 60 x 60mm (2.26x2.26x2.26inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=SMi0CmcFr7U\"\u003ehttps:\/\/www.youtube.com\/watch?v=SMi0CmcFr7U\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089034936662,"sku":null,"price":30.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/710b6f34-il_fullxfull.6965804983_fuxa.jpg?v=1755618618"},{"product_id":"oskars-mug","title":"Oskar's Mug","description":"\u003cp\u003eOskar's Mug is a puzzle mug. The objective is to drink from the mug. However, the mug has holes on all sides. Any attempt to drink or tilt the mug result in spilling your drink. The puzzle isn't solved yet even if you found how to drink from the cup since you will be surprised with water leaking from the bottom of the cup. You have to find how to stop the water. This puzzle combines a classic puzzle jug with a classic greedy cup\u003c\/p\u003e\n\u003cp\u003eSize of the regular mug: Height: 89mm(3.5in) Width: 117mm(4.6in) Weight: 94g\u003cbr\u003eSize of the big mug: Height: 111mm(4.37in) Width: 146mm(5.74in) Weight: 155g \u003cbr\u003eMaterial: PLA\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=SWYC-0uSZOY\u0026amp;t=15s\"\u003ehttps:\/\/www.youtube.com\/watch?v=SWYC-0uSZOY\u0026amp;t=15s\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDISCLAIMER: DON'T POUR HOT WATER INTO THE MUG.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Big Gray Mug","offer_id":51089035166038,"sku":null,"price":45.0,"currency_code":"EUR","in_stock":true},{"title":"Regular Red Mug","offer_id":51089035198806,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true},{"title":"Regular Gray Mug","offer_id":51089035231574,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true},{"title":"Regular Yellow Mug","offer_id":51089035264342,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true},{"title":"Regular Blue Mug","offer_id":51089035297110,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true},{"title":"Regular Blue\/Red Mug","offer_id":51089035329878,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/69f0b046-il_fullxfull.5445325077_jj4j.jpg?v=1755618621"},{"product_id":"oskar-key-puzzle-55-steps-to-solve","title":"Oskar Key puzzle. 55 steps to solve.","description":"\u003cp\u003eOskar Key was originally designed in 1987, based on an idea from 1984. This two-layer puzzle key was mass-produced in metal by the Japanese Hanayama toy company. It was the very first licensed design by Hanayama. Production has stopped a long time ago, and vintage samples are occasionally sold at Ebay for 1000 USD. To make the puzzle even more challenging than the original design Oskar added a third key in the middle. The goal of the puzzle is to remove all 3 keys from the frame. The puzzle is requires 55 steps to solve. A smaller frame for a 2 key puzzle will be added with your purchase. After removing 3 keys from the frame you can try to solve the original 2 keys version of the puzzle.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003eSize: 103mm x 63mm x 20mm (4.05in x 2.48in x 0.78in)\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035362646,"sku":null,"price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/df3b59fe-il_fullxfull.5857003227_o84k.jpg?v=1755618619"},{"product_id":"bolts-cube-8-pieces-one-cube-endless-struggle","title":"Bolts Cube – 8 Pieces, One Cube, Endless Struggle","description":"\u003cp\u003eDesigned by legendary puzzle creator Oskar van Deventer, this cleverly engineered challenge looks simple… until you try to solve it. Bolts Cube is made up of 8 uniquely shaped parts that must interlock to form a solid cube. Like its predecessor Bolts Loop, it features broken symmetry, smooth organic movement, and a satisfyingly frustrating assembly process. What makes it special? While the goal is straightforward — build a cube — the solution demands serious spatial thinking. The pieces only fit together in one exact configuration, and getting there is no small task. Even if you solve it once, rebuilding it is a whole new challenge. 🧩 \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned by Oskar van Deventer \u003cbr\u003e📐 Size: 60 x 60 x 60 mm \u003cbr\u003e⚖️ Weight: approx. 90 g \u003cbr\u003e⏱️ Solve time: 45 minutes and up \u003cbr\u003e🛠️ Difficulty: Moderate – requires solid 3D orientation skills \u003cbr\u003e🖐️ No force or tricks — just pure mechanical design \u003cbr\u003e📦 3D printed in high-quality PLA \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWhether you're a seasoned puzzler or just love clean, clever design, Bolts Cube will test your brain — and your patience — in all the right ways. \u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=M4xVaBqg-8U\u0026amp;pp=0gcJCbIJAYcqIYzv\"\u003ehttps:\/\/www.youtube.com\/watch?v=M4xVaBqg-8U\u0026amp;pp=0gcJCbIJAYcqIYzv\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035526486,"sku":null,"price":30.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/46826937-il_fullxfull.7031953050_wkad.jpg?v=1755618622"},{"product_id":"soma-shaker-fit-all-parts-inside-the-frame","title":"SOMA SHAKER. Fit all parts inside the frame","description":"\u003cp\u003eSoma Shaker is an invention by Volker Latussek. It has a 3x3x3 cage that telescopes into a 3x3x4 cage. This telescoping action opens the hole such that the pieces can be removed. The goal of the puzzle is to put the seven Soma pieces back into the 3x3x4 cage into a cube, and then push the cage back to 3x3x3. The puzzle comes with a \"packing solution\" that fits inside the 3x3x4 cage, but without being able to close it to 3x3x3. The name of the puzzle refers to the looseness of the pieces when the cage is at 3x3x4, when one can shake all the Soma pieces up and down.\u003c\/p\u003e\n\u003cp\u003eDesigner: Dr. Volker Latussek, Oskar van Deventer \u003cbr\u003eSize: 68mm x 68 x 87mm (2.67x3.43inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=rCbEcbINC-8\"\u003ehttps:\/\/www.youtube.com\/watch?v=rCbEcbINC-8\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035559254,"sku":null,"price":30.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/bbbf9275-il_fullxfull.6878624622_ftcx.jpg?v=1755618624"},{"product_id":"tower-of-soma-fit-all-parts-inside-the-frame","title":"TOWER OF SOMA. Fit all parts inside the frame","description":"\u003cp\u003eTower of Soma is yet another brilliant packing problem, designed by Volker Latussek. The object of the puzzle is to pack the seven classic Soma pieces into a cube shape inside a 3x3x4 cage. There is a V-shaped hole at the top center of the cage, through which all pieces go in. As the hole is offset by half a unit in both directions, the puzzle is very difficult. It take many rotations and multistep motions to get all pieces into the cage.\u003c\/p\u003e\n\u003cp\u003eDesigner: Dr. Volker Latussek, Oskar van Deventer \u003cbr\u003eSize: 68mm x 68 x 87mm (2.67x3.43inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=1zRR1YusSQo\u0026amp;pp=0gcJCbIJAYcqIYzv\"\u003ehttps:\/\/www.youtube.com\/watch?v=1zRR1YusSQo\u0026amp;pp=0gcJCbIJAYcqIYzv\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035755862,"sku":null,"price":30.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/efb60c30-il_fullxfull.6926595339_t023.jpg?v=1755618622"},{"product_id":"sixteen-piece-jigsaw-much-harder-than-it-looks","title":"Sixteen piece Jigsaw. Much harder than it looks.","description":"\u003cp\u003eSixteen-piece Jigsaw is a variation of the classic four-piece jigsaw. The goal of the puzzle is to take the puzzle apart, mix the pieces and assemble it back together.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003eSize: 79 x 79 x 8 mm (3.11 x 3.11 x 0.31 inch)\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=jplfn8TiqCs\u0026amp;t=2s\"\u003ehttps:\/\/www.youtube.com\/watch?v=jplfn8TiqCs\u0026amp;t=2s\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035886934,"sku":null,"price":20.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/f5c6c59f-il_fullxfull.6683940585_104w.jpg?v=1755618622"},{"product_id":"typhoon-puzzle-take-apart-and-put-back-together","title":"Typhoon puzzle. Take apart and put back together.","description":"\u003cp\u003eThe objective of the puzzle is to separate the four pieces. It might looks easy at a first glance, but the challenge is that this cannot be done one link at a time. Each piece is intertwined with the other three. Once the puzzle is disassembled the challenge isn't over yet. You have to put all parts back together.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=XssFf1u7nJU\u0026amp;t=206s\"\u003ehttps:\/\/www.youtube.com\/watch?v=XssFf1u7nJU\u0026amp;t=206s\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035919702,"sku":null,"price":28.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/cac4bd03-il_fullxfull.6842113627_jofd.jpg?v=1755618626"},{"product_id":"unstuck-gears-puzzle-make-all-gears-move-at-the-same-time","title":"Unstuck Gears puzzle. Make all gears move at the same time.","description":"\u003cp\u003eUnstuck Gears was designed in 1986, but first prototyped over 38 years later. The puzzle has ten geared pieces that need to be placed onto a base with ten pins. The goal is to place the pieces such that all pieces rotate when you turn one. If one places the pieces randomly, the gears get likely stuck, e.g. in a triangle. The puzzle is very hard to solve randomly. However, the puzzle becomes much easier with some systematic thinking.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003eSize: 119mm x 83mm x 75mm\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=Xp2iL5B5_Vo\"\u003ehttps:\/\/www.youtube.com\/watch?v=Xp2iL5B5_Vo\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089035952470,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/3663def7-il_fullxfull.7022071495_hlul.jpg?v=1755618628"},{"product_id":"twisted-cable-puzzle-take-it-apart-and-put-back-together","title":"Twisted Cable puzzle. Take it apart and put back together.","description":"\u003cp\u003eTwisted Cable is a put-together puzzle. It is a variation to the classic cable puzzle. That puzzle has a bunch of identical helical pieces of wire, twisted together into a hollow cable. The puzzle is now made harder by having non-identical pieces. Unlike the original, it is no longer possible to twist a single final piece in or out. \u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=uMeWDvZpc2c\"\u003e\u003c\/a\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=uMeWDvZpc2c\"\u003ehttps:\/\/www.youtube.com\/watch?v=uMeWDvZpc2c\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089036018006,"sku":null,"price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/7ece89c6-il_fullxfull.6611024643_nhry.jpg?v=1755618622"},{"product_id":"duck-stew-puzzle-put-all-ducklings-inside-the-pot","title":"DUCK STEW puzzle. Put all ducklings inside the pot.","description":"\u003cp\u003eDUSK STEW puzzle has 8 pieces shaped like ducklings, a small bullion cube and a round pot. Each duckling piece is made of 3 cubies. The pot has a round inner and outer shape. The goal of the puzzle is to fit all 8 ducklings and the bullion cube inside the pot so that none of the pieces will be sticking out above the pot. You will quickly discover that it looks impossible to fit all 9 parts inside even though the pot looks big. \u003cbr\u003e\u003cbr\u003eDesigner: Dr. Volker Latussek\u003cbr\u003eSize: 75mm x 52mm (2.95x2.04inch) \u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=WgnSgAwfY0M\"\u003ehttps:\/\/www.youtube.com\/watch?v=WgnSgAwfY0M\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089036050774,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/28810650-il_fullxfull.6756209799_4fa4.jpg?v=1755618623"},{"product_id":"impossible-square-nut-and-screw-squarely-nuts","title":"Impossible square nut and screw. Squarely Nuts.","description":"\u003cp\u003eSquarely Nuts is a piece of kinetic art designed by Oskar van Deventer. Screws are supposed to be round and nuts are supposed to have round holes. But not here. Square nut and square screw look like impossible object since they can't be connected together. Can be used as a fun fidget toy.\u003c\/p\u003e\n\u003cp\u003eDesigner: Oskar van Deventer\u003c\/p\u003e\n\u003cp\u003eMaterial: 3D printed PLA\u003c\/p\u003e\n\u003cp\u003eSize: 30mm x 30mm x 50mm (1.2in x 1.2in x 2in) \u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":51089036214614,"sku":null,"price":10.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/4e27f1e6-il_fullxfull.6115732643_mlhh.jpg?v=1755618622"},{"product_id":"penrose-morph-the-most-beautiful-packing-puzzle","title":"Penrose Morph - The Most Beautiful Packing Puzzle.","description":"\u003cp\u003eChallenge your mind with the Penrose Morph, a brilliantly designed packing puzzle by legendary puzzle creator Oskar van Deventer.\u003c\/p\u003e\n\u003cp\u003eYour task? Fit all 40 twisted blue pieces into the black decagonal frame. It looks simple at first glance, but don’t be fooled — this is a serious test of patience and logic.\u003c\/p\u003e\n\u003cp\u003e✨ Details:\u003cbr\u003eSize: 200 × 200 × 25 mm\u003cbr\u003e40 uniquely shaped pieces\u003cbr\u003eDesigned by Oskar van Deventer\u003cbr\u003e3D-printed in high quality with vibrant colors\u003cbr\u003eDifficulty: High\u003c\/p\u003e\n\u003cp\u003eOnce completed, the puzzle forms a striking geometric pattern — beautiful enough to display as a piece of art. A perfect gift for puzzle lovers, collectors, or anyone who enjoys a real challenge.\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=7JyPBe8ScLc\"\u003ehttps:\/\/www.youtube.com\/watch?v=7JyPBe8ScLc\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51129631179094,"sku":null,"price":55.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/PenroseMorph-2.jpg?v=1756035718"},{"product_id":"kitedart-morph-a-work-of-art-you-can-solve","title":"KiteDart Morph – A Work of Art You Can Solve","description":"\u003cp\u003eChallenge your mind with the KiteDart Morph, a brilliantly designed packing puzzle by legendary puzzle creator Oskar van Deventer.\u003c\/p\u003e\n\u003cp\u003eYour task? Fit all 40 twisted blue pieces into the black decagonal frame. It looks simple at first glance, but don’t be fooled — this is a serious test of patience and logic.\u003c\/p\u003e\n\u003cp\u003e✨ Details:\u003cbr\u003eSize: 200 × 200 × 25 mm\u003cbr\u003e40 uniquely shaped pieces\u003cbr\u003eDesigned by Oskar van Deventer\u003cbr\u003e3D-printed in high quality with vibrant colors\u003cbr\u003eDifficulty: High\u003c\/p\u003e\n\u003cp\u003eOnce completed, the puzzle forms a striking geometric pattern — beautiful enough to display as a piece of art. A perfect gift for puzzle lovers, collectors, or anyone who enjoys a real challenge.\u003cbr\u003e\u003cbr\u003eMore about the puzzle in Oskar's video - \u003ca href=\"https:\/\/www.youtube.com\/watch?v=eNXUAQaWKjw\"\u003ehttps:\/\/www.youtube.com\/watch?v=eNXUAQaWKjw\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eColors may vary.\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51173774197078,"sku":null,"price":55.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/KiteDartMorph-1.jpg?v=1756492167"},{"product_id":"kitedart-jigsaw-not-your-usual-jigsaw-puzzle","title":"KiteDart Jigsaw - not your usual jigsaw puzzle.","description":"\u003cp\u003eKiteDart Jigsaw was developed together with Craig Kaplan, who is famous for his contributions to the \"Einstein\" aperiodic monotiling. The puzzle is based on the aperiodic kites-and-darts Penrose tiling. 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A perfect gift for puzzle lovers, collectors, or anyone who enjoys a real challenge.\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51216229269846,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/KiteDartJigsaw-1.jpg?v=1756914983"},{"product_id":"dutch-rings-puzzle","title":"Dutch rings puzzle","description":"\u003cp\u003eDutch Rings is a cubic variation to the classic \"Turkish\" puzzle rings. Four rings-made-of-cubes are placed through each other. 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Although there are many ways the pieces could fit in the space, there is only \u003cstrong data-start=\"558\" data-end=\"585\"\u003eone precise arrangement\u003c\/strong\u003e that allows the box to shut properly.\u003c\/p\u003e\n\u003cp data-start=\"627\" data-end=\"743\"\u003eA clever and elegant challenge that combines the beauty of geometry with the frustration of a true packing puzzle.\u003c\/p\u003e\n\u003cp data-start=\"745\" data-end=\"835\"\u003e📐 Dimensions: 108 × 91 × 48 mm\u003cbr data-start=\"776\" data-end=\"779\"\u003e🎨 Designers: Dr. Volker Latussek \u0026amp; Oskar van Deventer\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"927\"\u003eA must-have for puzzle collectors who appreciate ingenious mechanisms and unique design.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"927\"\u003eColors may vary.\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51334313705814,"sku":null,"price":29.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/TresoradePenta-2.jpg?v=1758053145"},{"product_id":"tokyo-safe","title":"Tokyo Safe","description":"\u003cp data-start=\"74\" data-end=\"213\"\u003eTokyo Safe was originally created as a special gift for IPP 2025 in Tokyo.\u003c\/p\u003e\n\u003cp data-start=\"215\" data-end=\"631\"\u003eAt first glance, it looks like a tiny Japanese safe — but unlocking it is anything but straightforward. The puzzle consists of four parts: two rotating 4x4 mazes and two half-pins marked with the Japanese flag. Your task is to navigate both mazes \u003cem data-start=\"462\" data-end=\"480\"\u003eat the same time\u003c\/em\u003e without being able to see them. Only then can you pull the safe apart and reveal its hidden compartment.\u003c\/p\u003e\n\u003cp data-start=\"886\" data-end=\"954\"\u003e📏 \u003cstrong data-start=\"889\" data-end=\"898\"\u003eSize:\u003c\/strong\u003e 50 × 36 × 25 mm\u003cbr data-start=\"914\" data-end=\"917\"\u003e🎨 \u003cstrong data-start=\"920\" data-end=\"933\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/p\u003e\n\u003cp data-start=\"956\" data-end=\"1119\"\u003eWhether you’re a puzzle collector, a fan of Oskar’s ingenious designs, or simply looking for a unique brain teaser with a Tokyo twist, Tokyo Safe is a must-have.\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51417879871830,"sku":null,"price":13.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/TokyoSafe-2.jpg?v=1758987523"},{"product_id":"hepta-temple","title":"Hepta Temple","description":"\u003cp data-start=\"248\" data-end=\"500\"\u003eThe \u003cstrong data-start=\"252\" data-end=\"268\"\u003eHepta Temple\u003c\/strong\u003e is a striking heptagonal puzzle box designed by \u003cstrong data-start=\"331\" data-end=\"353\"\u003eOskar van Deventer\u003c\/strong\u003e. Inspired by his earlier design \u003cem data-start=\"386\" data-end=\"424\"\u003eScrew Cage Too (a.k.a. Penta Temple)\u003c\/em\u003e, this new version raises the challenge with seven unique helical pillars.\u003c\/p\u003e\n\u003cp data-start=\"502\" data-end=\"824\"\u003eYour task is to sink the pillars into the base, lift off the temple’s roof, and retrieve the hidden \u003cstrong data-start=\"602\" data-end=\"617\"\u003emarble\u003c\/strong\u003e. But the true challenge begins once everything is disassembled: with countless possible combinations, finding the \u003cstrong data-start=\"732\" data-end=\"756\"\u003eone correct assembly\u003c\/strong\u003e requires patience, spatial reasoning, and a touch of persistence.\u003c\/p\u003e\n\u003cp data-start=\"826\" data-end=\"969\"\u003eBeautifully symmetrical and mechanically elegant, the Hepta Temple is both a \u003cstrong data-start=\"903\" data-end=\"928\"\u003edisplay-worthy puzzle\u003c\/strong\u003e and a \u003cstrong data-start=\"935\" data-end=\"966\"\u003eserious test for collectors\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"971\" data-end=\"1116\"\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e High — a tough reassembly challenge\u003cbr data-start=\"1021\" data-end=\"1024\"\u003e\u003cstrong data-start=\"184\" data-end=\"197\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003cbr data-start=\"216\" data-end=\"219\"\u003e\u003cstrong data-start=\"219\" data-end=\"228\"\u003eSize:\u003c\/strong\u003e 75 × 75 × 60 mm\u003cbr\u003e\u003cbr\u003eColors may vary.\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51479265902934,"sku":null,"price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/HeptaTemple-1.jpg?v=1759519644"},{"product_id":"hacienda-de-penta","title":"HACIENDA DE PENTA","description":"\u003cp data-start=\"162\" data-end=\"336\"\u003eCreated by Dr. Volker Latussek and Oskar van Deventer, this puzzle is a masterclass in packing design. The goal is clear: fit all 12 pentomino pieces inside the cage.\u003c\/p\u003e\n\u003cp data-start=\"338\" data-end=\"625\"\u003eAt first it looks simple — the box opens like a small treasure chest. But once the pentominoes are inside, they block the lid from closing. Although there are many ways the pieces could fit in the space, there is only \u003cstrong data-start=\"558\" data-end=\"585\"\u003eone precise arrangement\u003c\/strong\u003e that allows the box to shut properly.\u003c\/p\u003e\n\u003cp data-start=\"627\" data-end=\"743\"\u003eA clever and elegant challenge that combines the beauty of geometry with the frustration of a true packing puzzle.\u003c\/p\u003e\n\u003cp data-start=\"745\" data-end=\"835\"\u003e📐 Dimensions: 108 × 91 × 68 mm\u003cbr data-start=\"776\" data-end=\"779\"\u003e🎨 Designers: Dr. Volker Latussek \u0026amp; Oskar van Deventer\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"927\"\u003eA must-have for puzzle collectors who appreciate ingenious mechanisms and unique design.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"927\"\u003eColors may vary.\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51528339521878,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/HaciendadePenta-2.jpg?v=1760039226"},{"product_id":"kombi-four-ring-combination-lock","title":"Kombi - Four ring combination lock.","description":"\u003cp data-start=\"81\" data-end=\"357\"\u003eMeet \u003cstrong data-start=\"86\" data-end=\"95\"\u003eKombi\u003c\/strong\u003e — a four-ring combination-lock puzzle you can actually take apart. Each ring shows digits 0–9. Your goal is to align the rings to “unlock” the shell and then fully disassemble the lock into its \u003cstrong data-start=\"290\" data-end=\"314\"\u003e40 dovetailed pieces\u003c\/strong\u003e… and, of course, put it all back together.\u003c\/p\u003e\n\u003cp data-start=\"359\" data-end=\"375\"\u003e\u003cstrong data-start=\"359\" data-end=\"375\"\u003eWhy it’s fun\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"376\" data-end=\"601\"\u003e\n\u003cli data-start=\"376\" data-end=\"474\"\u003e\n\u003cp data-start=\"378\" data-end=\"474\"\u003eA fresh twist on the classic combination lock, turned into a take-apart \u0026amp; reassembly challenge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"475\" data-end=\"544\"\u003e\n\u003cp data-start=\"477\" data-end=\"544\"\u003eSatisfying “aha” when the rings line up and the shell slides open\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"545\" data-end=\"601\"\u003e\n\u003cp data-start=\"547\" data-end=\"601\"\u003ePlenty of near-misses that tease you into one more try\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"914\" data-end=\"967\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eSize: 60x60x60mm\u003cbr\u003eDesigner: \u003cstrong data-start=\"924\" data-end=\"946\"\u003eOskar van Deventer\u003c\/strong\u003e\u003cbr data-start=\"946\" data-end=\"949\"\u003e\u003cem data-start=\"949\" data-end=\"967\" data-is-last-node=\"\"\u003eColors may vary.\u003c\/em\u003e\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51600905011542,"sku":null,"price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Kombi-1.jpg?v=1760722777"},{"product_id":"kombi-too-four-ring-combination-lock-with-a-twist","title":"Kombi Too - Four ring combination lock with a twist","description":"\u003cp data-start=\"137\" data-end=\"317\"\u003eMeet \u003cstrong data-start=\"142\" data-end=\"154\"\u003eKombi II\u003c\/strong\u003e — the sequel to Oskar van Deventer’s combination-lock puzzle.\u003cbr data-start=\"226\" data-end=\"229\"\u003eAt first glance, it looks almost identical to the original \u003cem data-start=\"288\" data-end=\"295\"\u003eKombi\u003c\/em\u003e… but don’t be fooled.\u003c\/p\u003e\n\u003cp data-start=\"319\" data-end=\"636\"\u003eWhile the first version had segments of different sizes, this new edition features \u003cstrong data-start=\"425\" data-end=\"460\"\u003erings made of equal-sized parts\u003c\/strong\u003e, creating a much more complex internal structure.\u003cbr data-start=\"510\" data-end=\"513\"\u003eThe familiar mechanism now hides deeper logic and tighter tolerances — every rotation and alignment matters more than ever.\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"662\"\u003e\u003cstrong data-start=\"638\" data-end=\"660\"\u003eWhy you’ll love it\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"663\" data-end=\"825\"\u003e\n\u003cli data-start=\"663\" data-end=\"707\"\u003e\n\u003cp data-start=\"665\" data-end=\"707\"\u003eSame look, entirely new challenge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"708\" data-end=\"765\"\u003e\n\u003cp data-start=\"710\" data-end=\"765\"\u003ePrecision-engineered rings that make every move count\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"766\" data-end=\"825\"\u003e\n\u003cp data-start=\"768\" data-end=\"825\"\u003eA true test for puzzlers who mastered the first version\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"827\" data-end=\"920\"\u003eIf you thought the first \u003cem data-start=\"852\" data-end=\"859\"\u003eKombi\u003c\/em\u003e was clever, this one will keep you spinning for much longer.\u003c\/p\u003e\n\u003cp data-start=\"922\" data-end=\"975\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eSize: 60x60x60mm\u003cbr\u003eDesigner: \u003cstrong data-start=\"932\" data-end=\"954\"\u003eOskar van Deventer\u003c\/strong\u003e\u003cbr data-start=\"954\" data-end=\"957\"\u003e\u003cem data-start=\"957\" data-end=\"975\" data-is-last-node=\"\"\u003eColors may vary.\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Puzzle guy store","offers":[{"title":"Default Title","offer_id":51664150200662,"sku":null,"price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Kombitoo-1.jpg?v=1761337441"},{"product_id":"marble-castle-xxl","title":"Marble Castle XXL","description":"\u003cp\u003eMarble Castle is a 3D-printed marble track. The ball runs from the top center all the way down, over the castle wall, into the back gate and out through the front gate. \u003cbr\u003e\u003cbr\u003eThe XXL version has a completely different track. It took 95 hours and 3.2kg of filament to print it.\u003cbr\u003e\u003cbr\u003eSmall version: 119x124x154mm. Weight: 425g. \u003cbr\u003eLarge version: 193x201x250mm. Weight: 1350g. \u003cbr\u003eXXL version size:  280x295x380mm. Weight: 3.2kg. \u003cbr\u003e\u003cbr\u003eDesigner: Oskar van Deventer \u003cbr\u003eMaterial: 3D printed PLA \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWatch my Marble Castle video - \u003ca href=\"https:\/\/www.youtube.com\/shorts\/vnkv44Ye9A0\"\u003ehttps:\/\/www.youtube.com\/shorts\/vnkv44Ye9A0\u003c\/a\u003e\u003c\/p\u003e","brand":"Puzzle Guy by Ivan Danik","offers":[{"title":"Small","offer_id":51838508597590,"sku":null,"price":80.0,"currency_code":"EUR","in_stock":true},{"title":"Large","offer_id":51838508630358,"sku":null,"price":150.0,"currency_code":"EUR","in_stock":true},{"title":"XXL","offer_id":51838508663126,"sku":null,"price":250.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/MarbleCastleXXL_847e686f-f5f7-40e6-aacb-501a0233c39b.jpg?v=1763062576"},{"product_id":"ziggutrees-puzzle-binary-challenge","title":"Ziggutrees puzzle - binary challenge.","description":"\u003cp data-end=\"309\" data-start=\"105\"\u003e\u003cstrong data-end=\"119\" data-start=\"105\"\u003eZiggutrees\u003c\/strong\u003e is a mechanical puzzle designed by \u003cstrong data-end=\"187\" data-start=\"165\"\u003eOskar van Deventer\u003c\/strong\u003e.\u003cbr data-end=\"191\" data-start=\"188\"\u003eInspired by Bram Cohen’s Ziggurat puzzle, this is a beautifully compact \u003cstrong data-end=\"308\" data-start=\"271\"\u003ebinary-style rotational challenge\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"627\" data-start=\"311\"\u003eInside the frame you’ll find \u003cstrong data-end=\"363\" data-start=\"340\"\u003esix rotating pieces\u003c\/strong\u003e, each with an arrow. Every piece can be rotated into \u003cstrong data-end=\"444\" data-start=\"417\"\u003efour distinct positions\u003c\/strong\u003e (0°, 60°, 120°, 180°).\u003cbr data-end=\"470\" data-start=\"467\"\u003eYour goal?\u003cbr data-end=\"483\" data-start=\"480\"\u003eRotate all pieces so that \u003cstrong data-end=\"537\" data-start=\"509\"\u003eevery arrow points south\u003c\/strong\u003e. Only then will the entire \u003cstrong data-end=\"583\" data-start=\"565\"\u003e“hill + trees”\u003c\/strong\u003e assembly unlock and slide out of the frame.\u003c\/p\u003e\n\u003cp data-end=\"793\" data-start=\"629\"\u003eIt looks simple… but the binary interactions make it trickier than expected. A satisfying challenge for collectors and fans of Oskar’s clever rotational mechanisms.\u003cbr\u003e\u003cbr\u003e\u003cstrong data-end=\"814\" data-start=\"803\"\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1047\" data-start=\"815\"\u003e\n\u003cli data-end=\"851\" data-start=\"815\"\u003e\n\u003cp data-end=\"851\" data-start=\"817\"\u003e\u003cstrong data-end=\"830\" data-start=\"817\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"883\" data-start=\"852\"\u003e\n\u003cp data-end=\"883\" data-start=\"854\"\u003e\u003cstrong data-end=\"863\" data-start=\"854\"\u003eSize:\u003c\/strong\u003e 110 × 60 × 121 m\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1047\" data-start=\"942\"\u003e\n\u003cp data-end=\"1047\" data-start=\"944\"\u003e\u003cstrong data-end=\"953\" data-start=\"944\"\u003eGoal:\u003c\/strong\u003e Rotate all six pieces so their arrows point south and slide the inner block out of the frame.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store by Ivan Danik","offers":[{"title":"Default Title","offer_id":51938183676246,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Ziggutrees-2.jpg?v=1763934174"},{"product_id":"pentomino-disk-puzzle","title":"Pentomino Disk Puzzle","description":"\u003cp data-start=\"128\" data-end=\"430\"\u003eThe \u003cstrong data-start=\"132\" data-end=\"150\"\u003ePentomino Disk\u003c\/strong\u003e is a beautifully engineered twist on the classic pentomino challenge. This distorted pentomino puzzle transforms a traditional square layout into a perfect circular form. The twelve pentomino pieces, along with a central 2×2 square, must be precisely fitted into the round frame.\u003c\/p\u003e\n\u003cp data-start=\"432\" data-end=\"690\"\u003eEach piece features a \u003cstrong data-start=\"454\" data-end=\"482\"\u003ehelical, screw-in design\u003c\/strong\u003e, adding a satisfying mechanical feel to the solving process. Once completed, the assembled puzzle locks securely inside a protective \u003cstrong data-start=\"616\" data-end=\"636\"\u003emagnet-held cage\u003c\/strong\u003e, turning the solution into a striking display object.\u003c\/p\u003e\n\u003cp data-start=\"692\" data-end=\"853\"\u003eThis puzzle offers a perfect blend of \u003cstrong data-start=\"730\" data-end=\"796\"\u003emechanical motion, spatial reasoning, and elegant presentation\u003c\/strong\u003e — ideal for collectors and serious puzzle solvers alike.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"860\" data-end=\"875\"\u003e\u003cstrong data-start=\"864\" data-end=\"875\"\u003eDetails\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"876\" data-end=\"1374\"\u003e\n\u003cli data-start=\"876\" data-end=\"931\"\u003e\n\u003cp data-start=\"878\" data-end=\"931\"\u003e\u003cstrong data-start=\"878\" data-end=\"891\"\u003eDesigner:\u003c\/strong\u003e \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOskar van Deventer\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"963\"\u003e\n\u003cp data-start=\"934\" data-end=\"963\"\u003e\u003cstrong data-start=\"934\" data-end=\"943\"\u003eSize:\u003c\/strong\u003e 111 × 111 × 27 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1123\" data-end=\"1212\"\u003e\n\u003cp data-start=\"1125\" data-end=\"1212\"\u003e\u003cstrong data-start=\"1125\" data-end=\"1134\"\u003eGoal:\u003c\/strong\u003e Assemble all pieces into the circular frame and secure them inside the cage\u003cstrong data-start=\"1215\" data-end=\"1230\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store by Ivan Danik","offers":[{"title":"Default Title","offer_id":51978371957078,"sku":null,"price":29.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/PentominoDisk-1.jpg?v=1764312299"},{"product_id":"hysteresis-key-precision-maze-key-puzzle-by-oskar-van-deventer","title":"Hysteresis Key – Precision Maze Key Puzzle by Oskar van Deventer","description":"\u003cp data-start=\"84\" data-end=\"351\"\u003e\u003cstrong data-start=\"84\" data-end=\"102\"\u003eHysteresis Key\u003c\/strong\u003e is a clever and deceptively simple-looking maze puzzle that challenges your sense of precision and control. Designed by \u003cstrong data-start=\"223\" data-end=\"264\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOskar van Deventer\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e, this puzzle is all about \u003cem data-start=\"291\" data-end=\"307\"\u003eexact movement\u003c\/em\u003e—not speed, not force, but perfect distance.\u003c\/p\u003e\n\u003cp data-start=\"353\" data-end=\"638\"\u003eAt first glance, the goal seems straightforward: \u003cstrong data-start=\"402\" data-end=\"422\"\u003epull the key out\u003c\/strong\u003e. But there’s a twist. The key can only move \u003cstrong data-start=\"467\" data-end=\"481\"\u003ein and out\u003c\/strong\u003e, and every movement subtly shifts a hidden red pin sideways inside the maze. Push or pull too far, and the puzzle immediately resets, undoing your progress.\u003c\/p\u003e\n\u003cp data-start=\"640\" data-end=\"787\"\u003eThe solution lies in carefully calibrated motions—small, deliberate pushes and pulls that guide the red pin through the internal maze step by step.\u003c\/p\u003e\n\u003cp data-start=\"789\" data-end=\"1087\"\u003eThis version is an experimental print using \u003cstrong data-start=\"833\" data-end=\"852\"\u003etransparent PLA\u003c\/strong\u003e, allowing you to see the red pin through a single transparent layer. This visual feedback makes the puzzle more accessible while still preserving the challenge, turning it into a fascinating blend of logic, dexterity, and observation.\u003c\/p\u003e\n\u003chr data-start=\"1089\" data-end=\"1092\"\u003e\n\u003ch3 data-start=\"1094\" data-end=\"1109\"\u003e\u003cstrong data-start=\"1098\" data-end=\"1109\"\u003eDetails\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1110\" data-end=\"1415\"\u003e\n\u003cli data-start=\"1110\" data-end=\"1146\"\u003e\n\u003cp data-start=\"1112\" data-end=\"1146\"\u003e\u003cstrong data-start=\"1112\" data-end=\"1125\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1147\" data-end=\"1194\"\u003e\n\u003cp data-start=\"1149\" data-end=\"1194\"\u003e\u003cstrong data-start=\"1149\" data-end=\"1158\"\u003eType:\u003c\/strong\u003e Maze \/ sequential movement puzzle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1195\" data-end=\"1247\"\u003e\n\u003cp data-start=\"1197\" data-end=\"1247\"\u003e\u003cstrong data-start=\"1197\" data-end=\"1210\"\u003eMaterial:\u003c\/strong\u003e 3D-printed PLA (transparent layer)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1248\" data-end=\"1278\"\u003e\n\u003cp data-start=\"1250\" data-end=\"1278\"\u003e\u003cstrong data-start=\"1250\" data-end=\"1259\"\u003eSize:\u003c\/strong\u003e 149 × 78 × 15 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1323\"\u003e\n\u003cp data-start=\"1281\" data-end=\"1323\"\u003e\u003cstrong data-start=\"1281\" data-end=\"1290\"\u003eGoal:\u003c\/strong\u003e Remove the key from the puzzle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store by Ivan Danik","offers":[{"title":"Default Title","offer_id":52333164921174,"sku":null,"price":17.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Hysteresiskey-4.jpg?v=1768494547"},{"product_id":"drone-puzzle","title":"Drone Puzzle – Mechanical Gear Brain Teaser by Oskar van Deventer","description":"\u003cp data-start=\"64\" data-end=\"301\"\u003eAt first glance, this puzzle looks like a futuristic drone resting on its landing base. But don’t be fooled — this is a \u003cstrong data-start=\"184\" data-end=\"218\"\u003epurely mechanical brain teaser\u003c\/strong\u003e designed to challenge your intuition, patience, and understanding of gear systems.\u003c\/p\u003e\n\u003cp data-start=\"303\" data-end=\"652\"\u003eThe puzzle features a solid base with four legs, four rotating blades, and a hidden token held beneath the bottom blade. Inside, a complex system of gears links all four blades together. Rotate one blade, and the others respond — each at a \u003cstrong data-start=\"543\" data-end=\"572\"\u003edifferent speed and ratio\u003c\/strong\u003e. What seems like simple rotation quickly turns into a precise mechanical dance.\u003c\/p\u003e\n\u003cp data-start=\"654\" data-end=\"941\"\u003eThe goal is deceptively clear:\u003cbr data-start=\"684\" data-end=\"687\"\u003e\u003cstrong data-start=\"687\" data-end=\"758\"\u003ealign all four blades on top of each other, then release the token.\u003c\/strong\u003e\u003cbr data-start=\"758\" data-end=\"761\"\u003eAchieving that alignment, however, is anything but simple. The internal gearing ratios and subtle mechanical tricks mean that progress can easily undo itself if you’re not careful.\u003c\/p\u003e\n\u003ch4 data-start=\"1147\" data-end=\"1163\"\u003e\u003cstrong data-start=\"1152\" data-end=\"1163\"\u003eDetails\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-start=\"1164\" data-end=\"1478\"\u003e\n\u003cli data-start=\"1164\" data-end=\"1219\"\u003e\n\u003cp data-start=\"1166\" data-end=\"1219\"\u003e\u003cstrong data-start=\"1166\" data-end=\"1179\"\u003eDesigner:\u003c\/strong\u003e \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOskar van Deventer\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1220\" data-end=\"1252\"\u003e\n\u003cp data-start=\"1222\" data-end=\"1252\"\u003e\u003cstrong data-start=\"1222\" data-end=\"1231\"\u003eSize:\u003c\/strong\u003e 240 × 135 × 100 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1253\" data-end=\"1318\"\u003e\n\u003cp data-start=\"1255\" data-end=\"1318\"\u003e\u003cstrong data-start=\"1255\" data-end=\"1264\"\u003eGoal:\u003c\/strong\u003e Stack all four blades together and remove the token\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1415\" data-end=\"1478\"\u003e\n\u003cp data-start=\"1417\" data-end=\"1478\"\u003e\u003cstrong data-start=\"1417\" data-end=\"1432\"\u003eDifficulty:\u003c\/strong\u003e Challenging, with non-intuitive gear ratios\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store by Ivan Danik","offers":[{"title":"Default Title","offer_id":52341401878870,"sku":null,"price":48.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Dronepuzzle-1.jpg?v=1768592852"},{"product_id":"sound-box","title":"Sound Box – Cylindrical Mechanical Puzzle with Rotating Disks","description":"\u003cp data-start=\"255\" data-end=\"564\"\u003e\u003cstrong data-start=\"255\" data-end=\"268\"\u003eSound Box\u003c\/strong\u003e is a beautifully deceptive mechanical puzzle designed by \u003cstrong data-start=\"326\" data-end=\"367\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOskar van Deventer\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e.\u003cbr data-start=\"368\" data-end=\"371\"\u003eInspired by the iconic striped patterns used by \u003cstrong data-start=\"419\" data-end=\"434\"\u003eKagen Sound\u003c\/strong\u003e in his wooden puzzle masterpieces, this cylindrical puzzle transforms visual rhythm into a tactile and almost musical experience.\u003c\/p\u003e\n\u003cp data-start=\"566\" data-end=\"831\"\u003eThe puzzle consists of \u003cstrong data-start=\"589\" data-end=\"618\"\u003e15 stacked rotating disks\u003c\/strong\u003e, each contributing to a changing striped pattern as you turn them. By rotating the disks, you can create \u003cstrong data-start=\"724\" data-end=\"776\"\u003eseven distinct and mesmerizing “sound patterns.”\u003c\/strong\u003e One of these patterns unlocks the box — but which one?\u003c\/p\u003e\n\u003cp data-start=\"833\" data-end=\"1077\"\u003eAt the heart of the puzzle is a \u003cstrong data-start=\"865\" data-end=\"899\"\u003ehidden cylindrical compartment\u003c\/strong\u003e, sealed by the top and bottom disks acting as lids. Once opened, the box reveals a small hidden space for a treasure — and an invitation to explore the puzzle’s inner mechanics.\u003c\/p\u003e\n\u003cp data-start=\"1079\" data-end=\"1361\"\u003eDisassembly reveals the true complexity: \u003cstrong data-start=\"1120\" data-end=\"1209\"\u003eseven of the disks are connected by M3 screws to disks seven layers below\u003c\/strong\u003e. As the disks rotate, these screws interact, collide, and restrict motion in subtle ways, making the puzzle far more challenging than it first appears.\u003c\/p\u003e\n\u003cp data-start=\"1363\" data-end=\"1465\"\u003eElegant, clever, and deeply satisfying — Sound Box is a puzzle you don’t just solve, you \u003cem data-start=\"1452\" data-end=\"1464\"\u003eexperience\u003c\/em\u003e.\u003c\/p\u003e\n\u003chr data-start=\"1467\" data-end=\"1470\"\u003e\n\u003ch3 data-start=\"1472\" data-end=\"1487\"\u003e\u003cstrong data-start=\"1476\" data-end=\"1487\"\u003eDetails\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1488\" data-end=\"1804\"\u003e\n\u003cli data-start=\"1488\" data-end=\"1524\"\u003e\n\u003cp data-start=\"1490\" data-end=\"1524\"\u003e\u003cstrong data-start=\"1490\" data-end=\"1503\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1525\" data-end=\"1555\"\u003e\n\u003cp data-start=\"1527\" data-end=\"1555\"\u003e\u003cstrong data-start=\"1527\" data-end=\"1536\"\u003eSize:\u003c\/strong\u003e 105 × 60 × 60 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1623\" data-end=\"1717\"\u003e\n\u003cp data-start=\"1625\" data-end=\"1717\"\u003e\u003cstrong data-start=\"1625\" data-end=\"1634\"\u003eGoal:\u003c\/strong\u003e Find the correct sound pattern to open the box and access the hidden compartment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store by Ivan Danik","offers":[{"title":"Default Title","offer_id":52423213449558,"sku":null,"price":75.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/SoundBox-3.jpg?v=1769207602"},{"product_id":"spoiler-alert-the-world-s-easiest-coin-puzzle","title":"Spoiler Alert – The “World’s Easiest” Coin Puzzle?","description":"\u003cp data-start=\"73\" data-end=\"163\"\u003e\u003cstrong data-start=\"73\" data-end=\"90\"\u003eSpoiler Alert\u003c\/strong\u003e is a clever and playful design by \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOskar van Deventer\u003c\/span\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp data-start=\"165\" data-end=\"403\"\u003eAt first glance, it looks simple — a yellow triangle with rounded corners and bold black text on each side saying \u003cem data-start=\"279\" data-end=\"297\"\u003e“Spoiler Alert!”\u003c\/em\u003e. Inside the triangle, there is a coin. Your goal is straightforward: \u003cstrong data-start=\"367\" data-end=\"402\"\u003eremove the coin from the puzzle\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"405\" data-end=\"548\"\u003eAccording to Oskar, this might be the world’s easiest puzzle. And yet, almost nobody has managed to solve it without reading the spoiler first.\u003c\/p\u003e\n\u003cp data-start=\"550\" data-end=\"593\"\u003eThat’s what makes this puzzle so brilliant.\u003c\/p\u003e\n\u003cp data-start=\"595\" data-end=\"796\"\u003eIt’s not about complex mechanisms or hidden magnets. It’s about assumptions, curiosity, and self-control. The real challenge is whether you can resist reading the spoiler and figure it out on your own.\u003c\/p\u003e\n\u003cp data-start=\"798\" data-end=\"975\"\u003eA fantastic conversation piece, a fun gift, and a great addition to any puzzle collection — especially if you enjoy puzzles that play with psychology rather than pure mechanics.\u003c\/p\u003e\n\u003chr data-start=\"977\" data-end=\"980\"\u003e\n\u003cp data-start=\"977\" data-end=\"989\"\u003e\u003cstrong data-start=\"977\" data-end=\"989\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"991\" data-end=\"1186\"\u003e\n\u003cli data-start=\"991\" data-end=\"1027\"\u003e\n\u003cp data-start=\"993\" data-end=\"1027\"\u003e\u003cstrong data-start=\"993\" data-end=\"1006\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1028\" data-end=\"1057\"\u003e\n\u003cp data-start=\"1030\" data-end=\"1057\"\u003e\u003cstrong data-start=\"1030\" data-end=\"1039\"\u003eSize:\u003c\/strong\u003e 78 × 72 × 10 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1058\" data-end=\"1087\"\u003e\n\u003cp data-start=\"1060\" data-end=\"1087\"\u003e\u003cstrong data-start=\"1060\" data-end=\"1069\"\u003eGoal:\u003c\/strong\u003e Remove the coin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1088\" data-end=\"1146\"\u003e\n\u003cp data-start=\"1090\" data-end=\"1146\"\u003e\u003cstrong data-start=\"1090\" data-end=\"1105\"\u003eDifficulty:\u003c\/strong\u003e Very Easy (if you read the spoiler 😉)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":52712159510870,"sku":null,"price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/SpoilerAlert-1.jpg?v=1772220537"},{"product_id":"inka-box","title":"Inka Box","description":"\u003cp data-start=\"0\" data-end=\"209\"\u003e\u003cstrong data-start=\"0\" data-end=\"12\"\u003eInka Box\u003c\/strong\u003e is a compact mechanical puzzle designed by the legendary puzzle creator \u003cstrong data-start=\"85\" data-end=\"126\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOskar van Deventer\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e. Inspired by ancient Inca symbolism, this small cube hides a tiny treasure inside.\u003c\/p\u003e\n\u003cp data-start=\"211\" data-end=\"536\"\u003eThe puzzle was originally created for Edwin Ladronde from Cusco, Peru, who promotes traditional Inca culture near Machu Picchu. The design reflects the iconic stepped Inca symbol that appears in many historical patterns and carvings. Despite its simple appearance, the box cleverly separates into \u003cstrong data-start=\"508\" data-end=\"535\"\u003esix interlocking pieces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"538\" data-end=\"636\"\u003eYour mission is straightforward: \u003cstrong data-start=\"571\" data-end=\"636\"\u003eopen the box and reveal the hidden “Inca gold” nugget inside.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"871\"\u003eThis puzzle was intentionally designed to be \u003cstrong data-start=\"683\" data-end=\"720\"\u003every accessible and easy to solve\u003c\/strong\u003e, making it a perfect introduction to mechanical puzzles. It’s the kind of puzzle that anyone can enjoy — even if they’ve never solved a puzzle before.\u003c\/p\u003e\n\u003cp data-start=\"873\" data-end=\"992\"\u003eIts small size and cultural inspiration make it a charming collectible, a desk toy, or a unique gift for puzzle lovers.\u003c\/p\u003e\n\u003chr data-start=\"994\" data-end=\"997\"\u003e\n\u003ch3 data-section-id=\"1dr5t50\" data-start=\"999\" data-end=\"1010\"\u003eDetails\u003c\/h3\u003e\n\u003cul data-start=\"1011\" data-end=\"1194\"\u003e\n\u003cli data-section-id=\"1qusd1x\" data-start=\"1011\" data-end=\"1047\"\u003e\n\u003cp data-start=\"1013\" data-end=\"1047\"\u003e\u003cstrong data-start=\"1013\" data-end=\"1026\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bwd52p\" data-start=\"1048\" data-end=\"1077\"\u003e\n\u003cp data-start=\"1050\" data-end=\"1077\"\u003e\u003cstrong data-start=\"1050\" data-end=\"1059\"\u003eSize:\u003c\/strong\u003e 60 × 60 × 60 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ysjesv\" data-start=\"1096\" data-end=\"1120\"\u003e\n\u003cp data-start=\"1098\" data-end=\"1120\"\u003e\u003cstrong data-start=\"1098\" data-end=\"1113\"\u003eDifficulty:\u003c\/strong\u003e Easy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f6se49\" data-start=\"1121\" data-end=\"1194\"\u003e\n\u003cp data-start=\"1123\" data-end=\"1194\"\u003e\u003cstrong data-start=\"1123\" data-end=\"1132\"\u003eGoal:\u003c\/strong\u003e Open the box and discover the hidden Inca gold nugget inside.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":52821107442006,"sku":null,"price":19.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/InkaBox-1.jpg?v=1773440972"},{"product_id":"cube-sphere","title":"Cube Sphere","description":"\u003cp data-start=\"38\" data-end=\"276\"\u003e\u003cstrong data-start=\"38\" data-end=\"53\"\u003eCube Sphere\u003c\/strong\u003e is a fascinating geometric assembly puzzle designed by \u003cstrong data-start=\"109\" data-end=\"131\"\u003eOskar van Deventer\u003c\/strong\u003e. At first glance, the finished shape looks almost impossible — a form where cube-like structure and spherical symmetry meet in a surprising way.\u003c\/p\u003e\n\u003cp data-start=\"278\" data-end=\"538\"\u003eThe puzzle is based on a newly discovered geometry, where every extended layer keeps its corners touching the surface of a sphere. This unusual concept gives the puzzle its distinctive look and makes the final assembled shape especially satisfying to complete.\u003c\/p\u003e\n\u003cp data-start=\"540\" data-end=\"900\"\u003eYour goal is to assemble all \u003cstrong data-start=\"569\" data-end=\"582\"\u003e96 pieces\u003c\/strong\u003e and build the full Cube Sphere. The puzzle is not extremely difficult, but it does require patience and careful observation, since the pieces come in different sizes and must be placed in the correct order. It is a rewarding challenge for puzzle lovers who enjoy unusual shapes, clever geometry, and precise assembly.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1dr5t50\" data-start=\"902\" data-end=\"913\"\u003eDetails\u003c\/h3\u003e\n\u003cul data-start=\"914\" data-end=\"1080\"\u003e\n\u003cli data-section-id=\"1qusd1x\" data-start=\"914\" data-end=\"950\"\u003e\n\u003cstrong data-start=\"916\" data-end=\"929\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer\u003c\/li\u003e\n\u003cli data-section-id=\"1laqrdy\" data-start=\"951\" data-end=\"983\"\u003e\n\u003cstrong data-start=\"953\" data-end=\"962\"\u003eSize:\u003c\/strong\u003e 100 × 100 × 100 mm\u003c\/li\u003e\n\u003cli data-section-id=\"1c91dz4\" data-start=\"984\" data-end=\"1012\"\u003e\n\u003cstrong data-start=\"986\" data-end=\"1001\"\u003eDifficulty:\u003c\/strong\u003e Moderate\u003c\/li\u003e\n\u003cli data-section-id=\"lm01lt\" data-start=\"1013\" data-end=\"1080\"\u003e\n\u003cstrong data-start=\"1015\" data-end=\"1024\"\u003eGoal:\u003c\/strong\u003e Assemble all 96 pieces to build the Cube Sphere shape\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53028081238358,"sku":null,"price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Cube-Sphere-01.jpg?v=1775247922"},{"product_id":"lumpy-soma","title":"Lumpy Soma","description":"\u003cp data-start=\"47\" data-end=\"248\"\u003e\u003cstrong data-start=\"47\" data-end=\"61\"\u003eLumpy Soma\u003c\/strong\u003e is a clever twist on the classic Soma puzzle. Instead of packing the seven familiar Soma pieces into a regular box, this time the challenge is to fit them into an unusual irregular cage.\u003c\/p\u003e\n\u003cp data-start=\"250\" data-end=\"612\"\u003eThis puzzle was invented by \u003cstrong data-start=\"278\" data-end=\"301\"\u003edr. Volker Latussek\u003c\/strong\u003e after \u003cstrong data-start=\"308\" data-end=\"330\"\u003eOskar van Deventer\u003c\/strong\u003e asked for a Soma cage that would not be rectangular. The result is a design that looks simple at first glance, but feels surprisingly different once you start solving it. The strange shape of the cage changes the whole experience and makes this well-known concept feel fresh again.\u003c\/p\u003e\n\u003cp data-start=\"614\" data-end=\"709\"\u003eA great puzzle for fans of packing challenges, Soma-style designs, and unusual geometric forms.\u003c\/p\u003e\n\u003cp data-start=\"711\" data-end=\"722\"\u003e\u003cstrong data-start=\"711\" data-end=\"722\"\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"723\" data-end=\"900\"\u003e\n\u003cli data-section-id=\"xa2ia5\" data-start=\"723\" data-end=\"783\"\u003e\n\u003cstrong data-start=\"725\" data-end=\"738\"\u003eDesigner:\u003c\/strong\u003e dr. Volker Latussek and Oskar van Deventer\u003c\/li\u003e\n\u003cli data-section-id=\"1m14ed5\" data-start=\"784\" data-end=\"813\"\u003e\n\u003cstrong data-start=\"786\" data-end=\"795\"\u003eSize:\u003c\/strong\u003e 66 × 86 × 66 mm\u003c\/li\u003e\n\u003cli data-section-id=\"zeuoxo\" data-start=\"814\" data-end=\"840\"\u003e\n\u003cstrong data-start=\"816\" data-end=\"831\"\u003eDifficulty:\u003c\/strong\u003e Difficult\u003c\/li\u003e\n\u003cli data-section-id=\"hvmfon\" data-start=\"841\" data-end=\"900\"\u003e\n\u003cstrong data-start=\"843\" data-end=\"852\"\u003eGoal:\u003c\/strong\u003e Fit all 7 Soma pieces into the irregular cage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53089764737366,"sku":null,"price":27.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/LumpySoma-1.jpg?v=1775850682"},{"product_id":"greek-soma","title":"Greek SOMA","description":"\u003cp data-start=\"143\" data-end=\"284\"\u003eGreek SOMA is a clever variation on the classic Soma puzzle. The goal is to pack all seven Soma pieces into a cage shaped like a Greek cross.\u003c\/p\u003e\n\u003cp data-start=\"286\" data-end=\"531\"\u003eThis puzzle was invented by dr. Volker Latussek after Oskar van Deventer asked him to create a Soma cage that would not be rectangular. The result is an elegant and unusual design that gives this familiar puzzle a completely different character.\u003c\/p\u003e\n\u003cp data-start=\"533\" data-end=\"768\"\u003eEven if you already know the classic Soma puzzle, the unusual cage shape makes this version feel fresh and challenging. It is a great choice for anyone who enjoys packing puzzles, geometric puzzles, or clever twists on classic designs.\u003c\/p\u003e\n\u003cp data-start=\"770\" data-end=\"784\"\u003e\u003cstrong data-start=\"770\" data-end=\"782\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"785\" data-end=\"981\"\u003e\n\u003cli data-section-id=\"1qq8o7e\" data-start=\"785\" data-end=\"842\"\u003e\n\u003cstrong data-start=\"787\" data-end=\"800\"\u003eDesigner:\u003c\/strong\u003e Oskar van Deventer, dr. Volker Latussek\u003c\/li\u003e\n\u003cli data-section-id=\"1d6lzuh\" data-start=\"843\" data-end=\"872\"\u003e\n\u003cstrong data-start=\"845\" data-end=\"854\"\u003eSize:\u003c\/strong\u003e 86 × 86 × 86 mm\u003c\/li\u003e\n\u003cli data-section-id=\"1xxyeep\" data-start=\"911\" data-end=\"981\"\u003e\n\u003cstrong data-start=\"913\" data-end=\"922\"\u003eGoal:\u003c\/strong\u003e Fit all seven Soma pieces into the Greek-cross-shaped cage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53151658049878,"sku":null,"price":40.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/GreekSOMA-1.jpg?v=1776463255"},{"product_id":"caged-penta","title":"Caged Penta","description":"\u003cp data-start=\"79\" data-end=\"216\"\u003e\u003cstrong data-start=\"79\" data-end=\"94\"\u003eCaged Penta\u003c\/strong\u003e is a clever packing puzzle that shifts the focus from the familiar Soma world into the rich possibilities of pentominoes.\u003c\/p\u003e\n\u003cp data-start=\"218\" data-end=\"502\"\u003eDesigned by dr. Volker Latussek and Oskar van Deventer, this puzzle challenges you to fit five uniquely shaped pentomino pieces into a compact cubic cage. While the goal may sound simple, the irregular geometry of pentominoes makes this a surprisingly tricky and satisfying challenge.\u003c\/p\u003e\n\u003cp data-start=\"504\" data-end=\"777\"\u003eAfter exploring countless variations of Soma puzzles, Volker turned his attention to pentominoes—opening the door to new spatial problems and fresh solving experiences. The result is a compact yet thought-provoking puzzle that will test your patience and spatial reasoning.\u003c\/p\u003e\n\u003chr data-start=\"779\" data-end=\"782\"\u003e\n\u003ch3 data-section-id=\"1dr5t50\" data-start=\"784\" data-end=\"795\"\u003eDetails\u003c\/h3\u003e\n\u003cul data-start=\"797\" data-end=\"969\"\u003e\n\u003cli data-section-id=\"1h28pfu\" data-start=\"797\" data-end=\"854\"\u003e\n\u003cstrong data-start=\"799\" data-end=\"812\"\u003eDesigner:\u003c\/strong\u003e dr. Volker Latussek, Oskar van Deventer\u003c\/li\u003e\n\u003cli data-section-id=\"1s1egl3\" data-start=\"855\" data-end=\"884\"\u003e\n\u003cstrong data-start=\"857\" data-end=\"866\"\u003eSize:\u003c\/strong\u003e 66 × 66 × 66 mm\u003c\/li\u003e\n\u003cli data-section-id=\"zeuoxo\" data-start=\"885\" data-end=\"911\"\u003e\n\u003cstrong data-start=\"887\" data-end=\"902\"\u003eDifficulty:\u003c\/strong\u003e Medium\u003c\/li\u003e\n\u003cli data-section-id=\"14dyqrc\" data-start=\"912\" data-end=\"969\"\u003e\n\u003cstrong data-start=\"914\" data-end=\"923\"\u003eGoal:\u003c\/strong\u003e Fit all five pentomino pieces into the cage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53264379707734,"sku":null,"price":28.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Cagedpenta-1.jpg?v=1777059033"},{"product_id":"fat-cigar-box-puzzle","title":"Fat Cigar Box Puzzle","description":"\u003cp data-start=\"224\" data-end=\"298\"\u003eA large, bold packing puzzle that demands both space and serious thinking.\u003c\/p\u003e\n\u003cp data-start=\"300\" data-end=\"524\"\u003eDesigned by \u003cstrong data-start=\"312\" data-end=\"335\"\u003edr. Volker Latussek\u003c\/strong\u003e and \u003cstrong data-start=\"340\" data-end=\"362\"\u003eOskar van Deventer\u003c\/strong\u003e, this puzzle is built around a classic challenge—fitting twelve Pentomino pieces into a single container—but scaled up into a more imposing, hands-on experience.\u003c\/p\u003e\n\u003cp data-start=\"526\" data-end=\"695\"\u003eOriginally designed at the request of puzzle collector George Miller, this puzzle takes the classic Pentomino packing problem and turns it into a more physical, satisfying challenge. The larger format makes every attempt more engaging—and every mistake more obvious.\u003c\/p\u003e\n\u003chr data-start=\"697\" data-end=\"700\"\u003e\n\u003ch3 data-section-id=\"1uo9i2c\" data-start=\"702\" data-end=\"715\"\u003e🧩 Goal\u003c\/h3\u003e\n\u003cp data-start=\"716\" data-end=\"771\"\u003eFit all twelve Pentomino pieces perfectly into the box.\u003c\/p\u003e\n\u003chr data-start=\"773\" data-end=\"776\"\u003e\n\u003ch3 data-section-id=\"1yefr8f\" data-start=\"778\" data-end=\"794\"\u003e📦 Details\u003c\/h3\u003e\n\u003cul data-start=\"795\" data-end=\"976\"\u003e\n\u003cli data-section-id=\"10100dc\" data-start=\"795\" data-end=\"853\"\u003e\n\u003cstrong data-start=\"797\" data-end=\"810\"\u003eDesigner:\u003c\/strong\u003e dr. Volker Latussek \u0026amp; Oskar van Deventer\u003c\/li\u003e\n\u003cli data-section-id=\"1rowjh1\" data-start=\"854\" data-end=\"885\"\u003e\n\u003cstrong data-start=\"856\" data-end=\"865\"\u003eSize:\u003c\/strong\u003e 105 × 105 × 46 mm\u003c\/li\u003e\n\u003cli data-section-id=\"g68kff\" data-start=\"886\" data-end=\"916\"\u003e\n\u003cstrong data-start=\"888\" data-end=\"899\"\u003ePieces:\u003c\/strong\u003e 12 Pentominoes\u003c\/li\u003e\n\u003cli data-section-id=\"10tae7y\" data-start=\"917\" data-end=\"941\"\u003e\n\u003cstrong data-start=\"919\" data-end=\"934\"\u003eDifficulty:\u003c\/strong\u003e Hard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"978\" data-end=\"981\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1352\"\u003eA great choice for collectors who enjoy traditional packing puzzles with a more substantial presence.\u003c\/p\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53368951865686,"sku":null,"price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/FatCigarBox-3.jpg?v=1777651048"},{"product_id":"fatal-puzzle","title":"FATAL puzzle","description":"\u003cp data-start=\"39\" data-end=\"135\"\u003e\u003cstrong data-start=\"39\" data-end=\"48\"\u003eFATAL\u003c\/strong\u003e is a tricky packing puzzle designed by \u003cstrong data-start=\"88\" data-end=\"134\"\u003edr. Volker Latussek and Oskar van Deventer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"137\" data-end=\"432\"\u003eThe goal is simple: fit all five Pentomino pieces into the cage. But the puzzle is much more confusing than it first appears. The cage has six large openings, while there are only five pieces, so it is not immediately clear which openings are useful and which ones are there just to mislead you.\u003c\/p\u003e\n\u003cp data-start=\"434\" data-end=\"629\"\u003eThe pieces have unusual “fat” shapes, and finding the right moves to get them inside is surprisingly difficult. Even when you think you understand the cage, the solution refuses to appear easily.\u003c\/p\u003e\n\u003cp data-start=\"631\" data-end=\"751\"\u003eDespite the dramatic name, there is nothing deadly about \u003cstrong data-start=\"688\" data-end=\"697\"\u003eFATAL\u003c\/strong\u003e — except maybe the frustration of trying to solve it.\u003c\/p\u003e\n\u003cp data-start=\"753\" data-end=\"764\"\u003e\u003cstrong data-start=\"753\" data-end=\"764\"\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"765\" data-end=\"946\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"l6roke\" data-start=\"765\" data-end=\"826\"\u003e\n\u003cstrong data-start=\"767\" data-end=\"781\"\u003eDesigners:\u003c\/strong\u003e dr. Volker Latussek and Oskar van Deventer\u003c\/li\u003e\n\u003cli data-section-id=\"1s1egl3\" data-start=\"827\" data-end=\"856\"\u003e\n\u003cstrong data-start=\"829\" data-end=\"838\"\u003eSize:\u003c\/strong\u003e 66 × 66 × 66 mm\u003c\/li\u003e\n\u003cli data-section-id=\"nmbniw\" data-start=\"857\" data-end=\"914\"\u003e\n\u003cstrong data-start=\"859\" data-end=\"868\"\u003eGoal:\u003c\/strong\u003e Fit all five Pentomino pieces into the cage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53534407688534,"sku":null,"price":28.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/Fatal-1.jpg?v=1778264645"},{"product_id":"pentomino-dot-yurt-soma-based-puzzle","title":"Pentomino DOT - Pentomino based packing puzzle","description":"\u003cp data-start=\"134\" data-end=\"192\"\u003eThis is a very clever twist on a classic pentomino puzzle.\u003c\/p\u003e\n\u003cp data-start=\"194\" data-end=\"415\"\u003eAt first glance, \u003cem data-start=\"211\" data-end=\"226\"\u003ePentomino DOT\u003c\/em\u003e looks like a simple packing challenge in a round box. And honestly? Packing the pieces back into the circular shape is not the hard part. The shapes themselves give away where they belong.\u003c\/p\u003e\n\u003cp data-start=\"417\" data-end=\"451\"\u003eBut that’s not where the trick is.\u003c\/p\u003e\n\u003cp data-start=\"453\" data-end=\"736\"\u003eDesigned by \u003cstrong data-start=\"465\" data-end=\"488\"\u003edr. Volker Latussek\u003c\/strong\u003e and \u003cstrong data-start=\"493\" data-end=\"515\"\u003eOskar van Deventer\u003c\/strong\u003e, this puzzle hides a surprisingly clever concept. The pentomino pieces are squeezed into a circular shape through a tiny opening. Once all pieces are inside, the entire assembled shape can rotate freely inside the frame.\u003c\/p\u003e\n\u003cp data-start=\"738\" data-end=\"766\"\u003eAnd that changes everything.\u003c\/p\u003e\n\u003cp data-start=\"768\" data-end=\"945\"\u003eRotate it the wrong way, and the puzzle locks itself in place. To remove the pieces again, you need to figure out the correct orientation and understand how the mechanism works.\u003c\/p\u003e\n\u003cp data-start=\"947\" data-end=\"1083\"\u003eIt’s a beautiful “aha!” style puzzle — simple to understand, clever in execution, and very satisfying once you realize what’s happening.\u003c\/p\u003e\n\u003cp data-start=\"1085\" data-end=\"1165\"\u003eA great pick for puzzle lovers who appreciate smart design over pure difficulty.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1dr5t50\" data-start=\"1167\" data-end=\"1178\"\u003eDetails\u003c\/h3\u003e\n\u003cul data-start=\"1179\" data-end=\"1483\"\u003e\n\u003cli data-section-id=\"10100dc\" data-start=\"1179\" data-end=\"1237\"\u003e\n\u003cstrong data-start=\"1181\" data-end=\"1194\"\u003eDesigner:\u003c\/strong\u003e dr. Volker Latussek \u0026amp; Oskar van Deventer\u003c\/li\u003e\n\u003cli data-section-id=\"zw118z\" data-start=\"1238\" data-end=\"1269\"\u003e\n\u003cstrong data-start=\"1240\" data-end=\"1249\"\u003eSize:\u003c\/strong\u003e 100 × 100 × 26 mm\u003c\/li\u003e\n\u003cli data-section-id=\"1bcstof\" data-start=\"1270\" data-end=\"1357\"\u003e\n\u003cstrong data-start=\"1272\" data-end=\"1281\"\u003eGoal:\u003c\/strong\u003e Remove all pentomino pieces from the round frame and fit them back inside\u003cstrong data-start=\"1464\" data-end=\"1483\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eColors may vary\u003c\/p\u003e","brand":"Puzzle Guy Store","offers":[{"title":"Default Title","offer_id":53720224825686,"sku":null,"price":29.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/0127\/4966\/files\/PentominoDOT-1.jpg?v=1778879366"}],"url":"https:\/\/puzzleguy.store\/collections\/oskar-van-deventer.oembed?page=3","provider":"Puzzle Guy Store","version":"1.0","type":"link"}