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Eight-Sided: Other
Hexagonal Prism (3x3x3)A 3x3x3 in shape of a hexagonal prism.
House Cube (Octagonal Edges Extended 294)A cross between an Octagonal Prism and a Cube. A 3x3x3 truncated on 2 edges. The result has a shape resembling a house.
Incomplete antiprism (Sharp Edges 201080420100)A 3x3x3 truncated on six edges and extended on remaining sides eventually resembling an antiprism.

Jewel TrapA corner turning tetragonal trapezohedron. A jumbling only puzzle.
Jumble TrapThe non-pillowed version of the face turning tetragonal trapezohedron. A jumbling-only puzzle.
Jumble Trap UnbandagedA face turning tetragonal trapezohedron with additional stored cuts.

Kev's Truncated Triangular PrismA 3x3x3 in shape of an incomplete triangular prism.
Kite TrapA shape transformation of the Astroid Attack which transformes it into a true tetragonal trapezohedron.
KristallThe Tetraminx produced in Alma-Ata during the soviet era.

Kristall (Cheboksary)The Tetraminx produced in Cheboksary (Russia) during the soviet era.
Kristall (for the blind)A Tetraminx for the blind produced in the former soviet union, in Rovno, Ukraine.
Kristall (Ivano-Frankivsk)The Tetraminx produced in Ivano-Frankivsk (Ukraine) during the soviet era.

Kristals-MA tetraminx with soviet origin with a special spiky shape.
Krystian's TwistA subset of the Big Chop in shape of the tridiminished icosahedron.
Lighthouse CubeA Pyraminx truncated into the shape of what could have been a pyramid with hexagonal base.

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