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

Pantazis Constantine Houlis
AbyssA puzzle which is based on the fourth dimensional symmetry (edge-transitivity) of the 4D polytope 8-cell (also known as Hypercube or Tesseract)
AfroditeA puzzle which is based on the fourth dimensional symmetry (edge-transitivity) of the 4D polytope rectified 5-cell (also known as Tetroctahedric)
AquadronWorld's first rotational-gravity puzzles based on a cubic structure. This puzzle is filled with water.

ArgoA puzzle which is based on the sixth dimensional symmetry of the 6-Simplex.
Australian FlagA 2x2x2 with the australian flag and a strange property.
Byzantine CrossA 3x3x3 covered with six byzantine crosses with differently coloured gems.

CerberusSix telescopic rods have to be arranged into a pentagram.
ChronosA puzzle which is based on the fourth dimensional symmetry (edge-transitivity) of the 4D polytope 5-cell (also known as Pentachoron)
ColossusA puzzle which is based on the fourth dimensional symmetry (edge-transitivity) of the 4D polytope 24-cell (also known as Icositetrachoron).

CosmosThis puzzle pretends to be based on a 4D polytope but it is not. Instead it is a cube with its antipodes connected.
Cubedron ClassicA rotational-gravity puzzles based on a cubic structure.
Cubedron StandardA rotational-gravity puzzles based on a cubic structure.

CybedronA sticker variant of the cubedron. It uses only two colours but is equally difficult.
Di-CubeA custom Magic with 12 tiles and two solutions.
DoTSA "sticker variant" of the Cubedron concept.


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