Online since 2002. Over 3300 puzzles, 2600 worldwide members, and 270,000 messages.
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Shapeways
17x17x17Also known as "Over the top". A puzzle made just because it is possible.
180 CubeThis 3x3x3 allows only halfturns for one axes. Another puzzle deemed impossible before.
1x2x9Another case of twistypuzzle extremism. A proof-of-concept how far a mechanism can be driven.
1x3x3 Mental Block (aka Mental Flop)Looks like 1x3x3 but is built from a 2x2x3.
1x5x5Another cuboid which would have been impossible without "olzing".
2x2x2 heartA valentine days present the creator made for his girlfriend.
2x4x4A fully functional 2x4x4 Cuboid
2x4x6Another fully functional cuboid designed by Grégoire Pfennig.
2x6x6Another cuboid which had been thought to be impossible in the past.
3x3x3 Rainbow CubeA hybrid puzzle which combines the twisting abilities of a 3x3x3 and a rainbow cube.
3x5x5 (proportional)The first perfectly proportional 3x5x5.
3x5x7A fully functional cuboid with three different dimensions which allows 90° moves on all axis.
4CubesFour parts (looking like a 3x3x3) connected into a single puzzle. The second (the other being an 11x11x11) collaboration of Tony Fisher with another designer.
4D Time CubeA 3x3x3 with restricted movements. It is equivalent to the Constrained Cube but implements the restrictions totally different.
4x4x4 Tetrakis Hexahedron3D-printed extensions were glued on a 4x4x4 to transform it into the namegiving solid.
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