Online since 2002. Over 3300 puzzles, 2600 worldwide members, and 270,000 messages.

Katsuhiko Okamoto
1x3x3 aka Floppy CubeA functional proportional looking 1x3x3
2x2x3 (aka: Slim Tower)A formerly custom now mass produced 2x2x3 cuboid, commonly known as the "Slim Tower"
Delta CUbeAn UFO transformed to have the shape of a cube.

Dino OctaA face-turning octahedron. Built without CAD before the age of 3D-printing!
Floppy OctagonA Floppy Cube truncated into the shape of an octagon.
Grown TowerA fully functional 3x3x5.

Hexa FloppyThe hexagonal cousin of the Floppy Cube.
Kepler CubeAnother great puzzle by Katsuhiko Okamoto who relies heavily on his famous void cube.
Latch CubeA 3x3x3 with innovatively restricted movements.

Lattice CubeCould be thought of as a Master Dino Cube.
Linking VoidTwo modified Void Cubes fused into one puzzle.
Linking Void IIThe 2012-version of the Linking Void.

Master Octagonal PrismA 4x4x4 truncated like an octagonal prism.
Master PyraminxAn incredible creation by Katsuhiko Okamoto.
Master SkewbAn incredible creation by Katsuhiko Okamoto. A very rare puzzle for many years it became mass produced in 2011.


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Turbo Mind Twister
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On Sale:
Eastsheen 4x4x4 (Dome)
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