PlaySudoku.us
Medium · Puzzle #428
7
6
3
3
4
6
7
8
3
1
5
2
9
1
9
6
4
2
7
4
8
6
7
2
5
4
2
9
1
3
3
1
7
6
4
3
6
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.