PlaySudoku.us
Expert · Puzzle #934
2
4
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7
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9
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9
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Scan rows, columns, and boxes for Hidden Singles: a digit that can only go in one cell within a house.
Scan rows, columns, and boxes for Hidden Singles: a digit that can only go in one cell within a house.
Sudoku is a constraint satisfaction problem — the same class of problems used in scheduling, circuit design, and AI planning.
Sudoku is a constraint satisfaction problem — the same class of problems used in scheduling, circuit design, and AI planning.