PlaySudoku.us
Easy · Puzzle #617
3
7
9
1
9
5
3
6
4
4
1
7
2
8
2
4
8
1
7
3
7
6
8
2
6
8
7
3
5
4
8
6
2
1
5
3
9
7
8
9
2
3
6
3
9
6
8
5
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.