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

2021
Hyper LooperThree circles on one line, each allowing 180� turns with very deep intersections.
Hyper VThe Offset Skewb 2x2x2 but without the restriction on the face turns.
IRT V1 F1Fragmentation version of the Big Stingray puzzle. It allows more turns than the doctrinaire puzzle.

IRT V1 F2The Big Stingray with additional turning abilities.
Ico-ZebraA nine-axes turning Icosahedron, using a geometry developed by Diogo Sousa.
Icositetrahedron StarThe icosioctahedron star v2 with an additonal type of pieces revealed.

Illusion 4x4 Windmill CubeThe cousin of the Illusion 4x4x4 Windwall Cube without the wall aspect.
Illusion 4x4x4 (stickered)A 4x4x4 piece swap that showing the permutations of paired pieces to reveal parity problems to novices.
Illusion 4x4x4 Cane BallTwo truncated cuboctahedron 4x4x4s exchanged pieces and thereby reimplemented the concept of the Illusion cubes.

Illusion 4x4x4 Hexagonal DipyramidTwo 4x4x4s in shape of hexagonal dipyramids exchanged pieces and thereby reimplemented the concept of the Illusion cubes.
Illusion 4x4x4 OctahedronTwo octahedral 4x4x4s exchanged pieces and thereby reimplemented the concept of the Illusion cubes.
Illusion 4x4x4 Rhombic DodecahedronTwo rhombic dodecahedron 4x4x4s exchanged pieces and thereby reimplemented the concept of the Illusion cubes.

Insanity HouseA 3x3x3 that combines three different concepts of shape variants.
Instant noodles cube IIA 3x3x3 designed after a type of instant noodles.
Ivy + Offset SkewbA corner turning hexahedron. A hybrid model which combines an Ivy cube with an offset Skewb.


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