PlaySudoku.us
Medium · Puzzle #284
1
9
7
3
4
8
4
5
9
1
5
2
4
1
9
9
4
1
5
8
6
1
8
4
5
6
9
7
4
5
6
1
7
8
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.