1
3
4
8
5
7
9
2
7
3
9
4
1
8
9
8
1
4
3
4
1
6
2
8
5
7
9
6
7
9
4
8
2
1
5
2
8
1
9
7
6
3
4
9
5
4
7
2
1
3
7
9
1
2
5
4
4
1
2
5
9
This Sudoku Puzzle has 36 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Triple, Locked Candidates Type 1 (Pointing), undefined, Empty Rectangle, Give Up techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Show More...