PlaySudoku.us
Easy · Puzzle #572
2
6
8
3
6
9
1
9
1
7
8
5
8
9
2
7
1
3
3
2
5
6
9
1
1
6
3
2
7
5
1
6
9
2
4
7
4
1
2
9
9
2
4
5
3
7
6
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.