In preparation for this years german logic puzzle championship, I constructed a few puzzles which will be put online in the next few weeks.
Rules: Blacken some cells, such that black cells are not orthogonally neighboured, and divide the remainng cells into dominos. A number in a horizontal domino indicates the number of black cells in the corresponding row, a number in a vertical domino indicates the number of black cells in the corresponding column.
Solution code: Row 2 and 7: X for a black cell, W for a cell in a horizontal domino, S for a cell in a vertical domino.
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