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

Tom van der Zanden
180 CubeThis 3x3x3 allows only halfturns for one axes. Another puzzle deemed impossible before.
3x3x3 Rainbow CubeA hybrid puzzle which combines the twisting abilities of a 3x3x3 and a rainbow cube.
3x4x5The long awaited bigger brother of the 2x3x4.

4x5x6The (fully functional) logical next step after 1x2x3, 2x3x4 and 3x4x5
6x6x7Another entry in the seemingly endless line of cuboids.
Chimera (4x4x6x6 cube)A combination of a 4x4x4 and a 6x6x6. Inspired by Tony Fishers V-Dome and implementing two AI-Cubes.

Compy SkewbA corner-turning hexahedron with four (no more!) logical layers.
Constrained CubeA 3x3x3 which twisting abilities can be contrained by various pieces. Mass produced versions of four variants exists.
Curvy CopterA variation on the Helicopter Cube that uses curved cuts to reveal the otherwise hidden centerpieces.

Curvy Copter IIA deeper cut version of the Curvy Copter which results in a different set of pieces.
Curvy Copter PlusA Curvy Copter with split up X-pieces
Deep Uniaxial 3x3x3Not a bandaged 5x5x5 but a 3x3x3 with strangely displaced cuts.

Dino 3x3x3A hybrid of 3x3x3 and Dino cube.
Dino SkewbA puzzle which allows the moves of a Dino Cube and a Skewb.
Helicopter SkewbA hybrid of Helicopter cube and Skewb. This puzzle brings jumbling to a new level.

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