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

Mark Segedin
1x3x5The first 1x3x5 somewhat looking like cuboid.
1x3x6A flat cuboid designed to fill a missing slot in the purchasers collection
1x4x5A flat cuboid designed to fill a missing slot in the purchasers collection

1x5x6A flat cuboid designed to fill a missing slot in the purchasers collection.
2x3x6An irregular cuboid. Specifically made for filling a gap in the buyers collection.
3x4x6Another "olzed" cuboid.

4x4x7Another cuboid of dimensions which had been unthinkable years ago.
BeeCone IA 2x2x2 in shape of a Bicone. Version with differently shaped pieces.
BeeCone IIA 2x2x2 in shape of a Bicone. Version with uniformly shaped pieces.

Circle FloppyThe "Circle" or "Crazy"-variant of the Floppy Cube.
Circle Pentagonal PrismA three-layered pentagonal prism with circles in the top and bottom face.
Confusion CubeA triangular prism with three layers in shape of a cube but with an awkwarly reoriented axis system.

Door's OctahedronA Masterball in shape of an octahedron.
Floppy prismThe pentagonal cousin of the Floppy Cube.
Helicopter Hexagonal DipyramidA Helicopter Cube in shape of a hexagonal diypramid. This is not a shape transformation but designed from scratch.


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