PlaySudoku.us
Easy · Puzzle #671
1
9
3
8
6
8
6
7
2
9
6
5
1
3
9
6
7
5
4
3
4
7
1
6
8
6
2
8
3
7
1
4
3
5
6
6
1
4
5
3
9
8
3
5
9
2
4
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.