PlaySudoku.us
Easy · Puzzle #491
8
2
4
7
3
1
1
7
4
8
6
6
4
8
3
2
5
1
8
6
2
3
4
3
7
9
8
6
5
2
6
1
8
3
8
5
9
4
6
4
8
1
9
7
2
5
9
1
7
6
8
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.