Shakashaka
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Sample | Progressing | Solution |
Rules
- Place black "triangles in squares" (see 2) in the grid under the following rules.
- There are four kinds of black triangles you can put in the squares:
. You cannot place black triangles in the black squares.
- The parts of the grid that remain white (uncovered by black triangles) always form a rectangle or a square.
- The numbers indicate how many black triangles are around it, vertically and horizontally.