PlaySudoku.us
Medium · Puzzle #545
6
9
4
1
8
5
4
8
6
9
7
6
2
4
4
7
9
8
1
8
7
2
1
6
3
9
1
9
3
5
2
4
7
2
5
6
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.