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Minimal permutations 2x2x2
Above:Version 1 - 6 colours
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A 2x2x2 stickered to achieve a number of permutations as small as possible. The are at least four subvariants different in the number of colours used.

This is more the result of a mathematical riddle than a puzzle. A 2x2x2 was stickered to achieve a number of permutations as small as possible. Condition is that each colours shall have the same number of stickers. The builder implemented subvariants with 3, 6 and 5 colours.


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