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