PlaySudoku.us
Easy · Puzzle #158
5
6
4
2
8
7
1
8
4
9
6
3
2
3
7
1
5
6
6
5
6
3
4
9
5
7
1
6
9
4
1
8
7
3
4
6
9
5
3
4
9
2
7
8
1
2
9
5
4
3
7
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.