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 Constrained Cube Above:Solved Click a thumbnail to see its larger version and description. A 3x3x3 which twisting abilities can be contrained by various pieces. Mass produced versions of seven variants exists. Inventor: Tom van der Zanden Mechanism: Constraints without bandaging Patents: 20123031057x.x Producer: Calvin's Puzzle Year: 2010 Original Price: \$26.00 USD Current Price: No Data The Constrained Cube is a variation on the regular Rubik's Cube, where the rotation of faces can be limited to make solving the puzzle more difficult. This is achieved by having a cogwheel attached to the core, around which the centre piece rotates. The Constrained Cube uses a combination of custom pieces and regular Rubik's Cube pieces.There are many possible variations of the Constrained Cube. It is possible to choose a different rotational freedom for every face by combining the modular pieces. There are parts that allow full rotation, parts that constrain the face to 180 and 90 degrees and parts that do not allow the selected face to move at all. There are also parts that will constrain a face to 270 degrees, but since going 270 degrees one way is the same as going 90 degrees the other way, they do not change the solving experience (but they could be nice as a joke for speedcubers!). Beginning in September 2012 seven mass-produced variants (images 5–14) of this concept were sold by hknowstore. These variants are:Constrained Cube 90 – all faces 90 degree constrainedConstrained Cube 180 – all faces 180 degree constrainedConstrained Cube 270 – all faces 270 degree constrainedConstrained Cube Ultimate – mixed (including 0/90/180 degree constrained and free turn)Constrained Cube Mix I (90 & 180) – 3 faces 90 degree constrained and 3 faces 180 degree constrainedConstrained Cube Mix II (90 & 270) – 3 faces 90 degree constrained and 3 faces 270 degree constrainedConstrained Cube Mix III (180 & 270) – 3 faces 180 degree constrained and 3 faces 270 degree constrainedThe first four variants are available in two differently sized boxes.Edge length: 55 mmWeight: 87 grams (stickerless version)Weight: 90 grams (black body) Links Contributors Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann, Matt. Collections This puzzle can be found in collections of these members:Jorge: My CollectionAndreas Nortmann: Andreas' collectionsergI: My Collectionclauswe: Claus' Twisty Puzzle Collectionlunny: Lunny's CollectionLesovik314: My CollectionLesovik314: My CollectionLesovik314: My CollectionLesovik314: My CollectionPuzzlemad: Puzzlemad's twisty collectionchewbacca: Chewbacca's CollectionZzupler: Zzupler's puZzlersTall Pawn: My collectionNiftyTwisty: My... Addiction!scharlton: My CollectionCurtenrod: Curtenrod's collectionM-Judge: M.Judge's CollectionGCKM86: The Bear CaveLinxiao_Xu: Linxiao's CollectionCube_addict: Cube_addict's Collectiontopstick: Topsticks Collectionmatthewdgibbs: Matthew's Collectionmatthewdgibbs: Matthew's Collectionmatthewdgibbs: Matthew's Collectionmatthewdgibbs: Matthew's Collectionmatthewdgibbs: Matthew's Collectionmatthewdgibbs: Matthew's Collectionmatthewdgibbs: Matthew's CollectionTiny Twin: My CollectionTylerMcDaniels: Tyler's CollectionTrung Dung: Trung Dung small collectionfbgrac: Bini's Collectiongramotej: My growing collectiongryan: My Puzzlesjammytea: Jammytea's collectionFound a mistake or something missing? Edit it yourself or contact the moderator. join »login » Community Members: 4965 Most recent: Jonas_JAS Members online: paulcuburi and 0 hidden, as well as 6 guests and 0 web crawlers. Topics/posts: 35570/401742 Some recent posts: Re: Spinning top-Rubik by P Sidgman R 2 hours ago. Re: Spinning top-Rubik by ortwin 3 hours ago. Spinning top-Rubik by P Sidgman R 3 hours ago. Re: Minimal Reduction by OSKAR by Bram 5 hours ago. Re: Packages Just Arrived with Rare Puzzles by grigr 5 hours ago. Thanks for spending your time with us Frank and Darren. You are missed.