PlaySudoku.us
Easy · Puzzle #437
9
5
8
6
7
7
9
5
8
7
8
5
6
2
5
1
4
7
8
1
7
9
4
2
8
2
7
9
6
5
1
9
5
3
6
4
5
1
3
9
2
7
2
8
7
4
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.