PlaySudoku.us
Medium · Puzzle #527
7
5
8
6
6
5
4
8
7
1
3
1
6
8
7
5
6
9
1
2
4
6
9
2
1
8
5
7
3
1
2
4
3
7
9
5
1
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.