PlaySudoku.us
Hard · Puzzle #734
6
2
4
5
3
1
8
4
6
5
3
5
9
1
8
2
7
4
1
5
3
1
3
7
6
9
1
5
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.