Calvin's 3x3x5 Cross Cube by Tony Fisher and Evgeniy Gregoriev
Calvin's 3x3x5 Cross Cube
Part of the superb 3x3x5 series by Calvin's puzzles, he Cross cube was originally designed by Tony Fisher, with this incarnation designed by Evgeniy Gregoriev.
It functions much like a 3x3x3 cube, with each face having an extra layer on top of it, to add extra challenge.
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