PlaySudoku.us
Easy · Puzzle #194
4
5
1
7
9
2
4
3
8
5
8
7
5
9
4
1
6
8
1
5
2
4
2
3
8
5
9
4
8
3
6
1
2
5
3
1
7
2
9
2
1
6
3
4
7
6
7
2
5
3
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.