Paint some squares with
black color using the numbers on the sides.
The numbers below the diagram show the length of the black blocks in the related
column respectively.
At least one white square must exist between the black blocks.
The numbers on the right side of the diagram show the length of the white blocks
in the related row respectively.
At least one black square must exist between the white blocks.
A black square is shown as a clue.
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Solution: |
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4 |
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4 |
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