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

Marcel Gillen
Quintamese CubesFive 3x3x3s joined like Siamese cubes.
Siamese 4 (1x1x4)Two 4x4x4's sharing a column of cubies.
Siamese 5x5x5 CubesTwo 5x5x5s fused together with a joined block of size 1x1x5.

Ten Billion Barrel X4 (10 layers)A ten billion barrel with ten layers which is five times the size of the original puzzle.

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