PlaySudoku.us
Easy · Puzzle #473
6
7
9
3
1
5
8
2
9
6
9
4
1
6
7
8
4
5
2
3
5
2
7
8
7
4
9
3
5
9
5
8
7
4
8
3
2
6
1
5
1
7
3
2
9
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.