PlaySudoku.us
Medium · Puzzle #860
5
1
9
2
2
6
9
8
7
7
9
1
6
1
7
9
5
2
6
3
6
9
2
4
3
5
4
9
6
2
3
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.