Paint some empty cells black. No square of side 2 is entirely black. No black area is rectangular. All white areas are rectangular. All white areas are diagonally adjacent. A white area may contain up to one number, and that number must be its area.
The following puzzle is intended to be instructive, so not terribly hard.
The following puzzle is intended to be instructive, so not terribly hard.
1 comments:
Interesting thoughts
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