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