PlaySudoku.us
Medium · Puzzle #563
3
1
5
6
4
5
1
4
7
9
3
8
1
5
1
8
9
9
3
5
5
9
7
2
2
6
4
5
3
5
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.