How to Solve a Polycube Puzzle: Volume, Colour and Layers
Pack cube pieces into a box with four checks: volume, a 3D checkerboard colour count, awkward pieces first and layer by layer, plus a practice puzzle.
Riddle10 blog
Pack cube pieces into a box with four checks: volume, a 3D checkerboard colour count, awkward pieces first and layer by layer, plus a practice puzzle.