4
8
3
7
9
1
2
6
5
7
1
5
2
4
6
8
9
3
6
9
2
5
3
8
7
1
4
1
2
6
3
5
4
8
7
9
4
5
7
9
8
2
6
3
1
3
8
9
1
6
7
2
4
5
5
1
8
9
3
2
6
4
7
3
7
4
5
6
8
1
2
9
9
2
6
4
7
1
8
5
3
This Sudoku Puzzle has 29 steps and it is solved using Naked Single, Full House techniques.
Naked Single
Explanation
Full House
Explanation
Show More...