Jeff Heldt

Mind Logic Games Jeff Heldt

Irasuto ("Illustration") is a logic puzzle created by Naoki Inaba (Japan). A rectangular or square grid contains white and black cells with numbers. The goal is to blacken some cells of a grid according to the following rules:
- A number in a white cell represents the number of empty white cells that can be seen from that cell.
- A number in a black cell represents the number of empty black cells that can be seen from that cell.

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