PlaySudoku.us
Expert · Puzzle #745
5
2
7
4
1
6
7
3
5
1
4
7
9
3
7
1
5
5
9
2
1
6
5
8
1
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.