Online since 2002. The most comprehensive site for all around twisty puzzles.

Crazy Puzzle (other)
Restricted Crazy Junior BarrelThe Crazy Junior Barrel with some constraints.
Split Crazy 1x2x3A Crazy 1x2x3 where several pieces were split up.
Super 2x2x4A mass produced 2x2x4 transformed into a crazy (aka circle) puzzle.

Super 3x3x4-01 Cuboid CubeA 3x3x6 with two layers reduced to circles. One of them linked to the surrounding pieces.
Super 3x3x5 I Cuboid CubeA 3x3x6 with one layer reduced to a circle, unlinked to the surrounding pieces and with the core shifted by half a cubie.
Super 3x3x5 II Cuboid CubeA 3x3x6 with one layer reduced to a circle, linked to the surrounding pieces and with the core shifted by half a cubie.

Super 3x3x5-00 Cuboid CubeA 3x3x7 with two layers reduced to circles, non-linked to the surrounding pieces and with a core offset half a cubie.
Super 3x3x5-01 Cuboid CubeA 3x3x7 with two layers reduced to circles, one linked to the surrounding pieces, the other not and with a core offset half a cubie.
Super 3x3x6-00 Cuboid CubeA 3x3x8 with two layers reduced to circles.

Super 3x3x6-01 Cuboid CubeA 3x3x8 with two layers reduced to circles, one of them linked to the surrounding pieces.
Super 3x3x7 I Cuboid CubeA 3x3x8 with one layer reduced to a circle, unlinked to the surrounding pieces and with the core shifted by half a cubie.
Super 3x3x7 II Cuboid CubeA 3x3x8 with one layer reduced to a circle, linked to the surrounding pieces and with the core shifted by half a cubie.

Super Crazy TetrahedronA super variant of the Crazy Tetrahedron Simplified. Unlike the non-simplified variant it lacks one piece type.
Triangular Circle Floppy PrismThe triangular cousin of the Circle Floppy
True Crazy 2x3x3A proportional 2x3x3 with circles on all sides.


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