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Heyawake is a logic puzzle with simple rules and challenging solutions.
The rules of Heyawake are simple:
You have to color the cells of the grid in black and white according to the rules:
- Regions with a number should contain black cells matching the number.
- 2 black cells cannot be adjacent horizontally or vertically.
- A straight (orthogonal) line of connected white cells cannot span across more than 2 regions.
- All white cells should be connected in a single group.