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Six-Sided: Cuboid
3x7x7 (extended)A 3x7x7 cuboid, built with extension on pieces of a reduced 7x7x7.
3x7x7 (pillowed)A pillowed version of the 3x7x7. Made from a 7x7x7.
4 Color TheoremA trivial puzzle inspired by 'Instant Insanity'. An upgraded 1x1x4.

4x4x4 Floppy I-CubeA bandaged 4x4x5 in disguise.
4x4x5A Tony Fisher custom puzzle. 68 pieces were modified to make this puzzle.
4x4x5 (mass produced)The first mass produced 4x4x5.

4x4x6A fully functional and fully proportional 4x4x6 made from a 4x4x4.
4x4x6 Fisher CuboidThe mass produced 4x4x6 fishered (twisted 45┬░ inside its solid) and again mass produced.
4x4x7Another cuboid of dimensions which had been unthinkable years ago.

4x4x8A cuboid with more than 200 pieces.
4x4x9A half regular cuboid from Gr├ęgoire Pfennigs run of cuboids of 2012.
4x5x5The "biggest" cuboid in the range of N<=5.

4x5x5 (mass produced)The first mass produced 4x5x5.
4x5x6The (fully functional) logical next step after 1x2x3, 2x3x4 and 3x4x5
4x5x6 Floppy I-Cube ExtremeA bandaged 6x6x6 with three layers removed on two sides.

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