PlaySudoku.us
Medium · Puzzle #248
8
5
9
2
6
7
2
5
3
4
1
8
9
2
7
3
9
1
4
6
8
3
2
4
9
3
9
5
1
6
8
1
6
7
9
4
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.