Friday, 24 May 2013

Heyawake Instructions

Rules: The challenge is to shade some cells on the grid, subject to the following rules:
  1. Shaded cells must never touch horizontally or vertically
  2. Unshaded cells must form one, connected area.
  3. Numbers dictate how many shaded cells are in a room, also a straight line of unshaded cells can only connect two rooms i.e. any such line of unshaded cells which connects three or more rooms is forbidden.

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