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

Oskar van Deventer
Heptagon"The Pentagon" with 7-fold symmetry.
Hex CubeA Mixup Cube with one middle layer deleted and transformed into a half-regular shape.
Hex ShiftFourteen gears on a hexagonal shape.

Hexagonish BlockA bandaged face turning pentadecagonal prism in shape of a (irregular) hexagonal prism.
HexalabacusA bigger variant of Astrolabacus with six segments that but with six channels of beads.
Hexed MixupA hexagonal prism two layers high. The central hexagons are not fully split (or: bandaged) to make the puzzle work.

Hinged Gift CubeA variant of Oskar van Deventer's original Gift Cube with hinges.
Hinged Treasure ChestA mass produced Treasure Chest with four pieces replaced. The result resembles the Hinged Gift Cube without being identical.
Hollow 2x2x2A 2x2x2 made mostly of air.

Hollow CubeA 3x3x3 made mostly out of air.
Hollow Diamond (Plug&Play)A minimal twist with extending pieces which can be clipped into the hollow pieces.
Hollow MysteryA simplified version of Rocket Twist with all the same strange properties.

Hollow PyramidThe concept of the Hollow Cube transferred to the Pyraminx but with a newly designed mechanism.
Hollow SkewbA Skewb as radically reduced as possible.
Hollow Skewb (Plug&Play)A minimal twist with extending pieces which can be clipped into the hollow pieces.


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