PlaySudoku.us
Medium · Puzzle #608
6
8
4
1
4
7
6
3
2
3
7
4
8
7
6
9
9
4
8
5
4
7
1
1
3
4
9
2
9
6
8
6
3
1
2
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.