Blue Transfer · Rolling Cube
Roll a cube across painted studio floors. Every landing exchanges the bottom face with its floor square; make all six faces blue. Fifteen solvable 3×3, 4×4 and 5×5 studies, unfolded face net, pointer/keyboard controls, undo, assisted route hints and local progress. Cube-only browser port of Simon Tatham’s Cube. Source: https://github.com/chrisboyle/sgtpuzzles/blob/d1e10eb57dd80af4999e698a9ab31f546e9a0b9d/app/src/main/jni/cube.c (MIT). Metadata tags: github-source, game.
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