PlaySudoku.us
Easy · Puzzle #176
8
5
6
2
1
7
9
4
6
9
5
8
3
9
4
7
1
7
5
6
4
8
3
8
9
2
1
4
9
6
3
1
5
2
7
6
9
3
1
2
1
4
2
5
9
7
6
3
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.