PlaySudoku.us
Easy · Puzzle #653
1
8
9
4
6
7
2
3
4
7
1
8
5
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9
6
5
9
8
4
1
6
2
7
1
5
2
7
6
3
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3
1
8
8
7
5
9
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9
5
1
4
7
8
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4
9
8
5
2
Backtracking — the algorithm most computers use to solve Sudoku — is a form of depth-first search with pruning.
Backtracking — the algorithm most computers use to solve Sudoku — is a form of depth-first search with pruning.
Backtracking — the algorithm most computers use to solve Sudoku — is a form of depth-first search with pruning.
Backtracking — the algorithm most computers use to solve Sudoku — is a form of depth-first search with pruning.