6
2
4
5
7
8
1
9
3
8
9
3
2
1
6
4
5
7
5
1
7
9
4
3
8
6
2
3
8
7
4
5
2
9
1
6
1
2
4
3
6
8
5
7
2
6
2
5
1
7
9
4
3
8
8
4
9
2
6
5
7
3
1
6
3
1
7
8
9
6
4
5
7
5
6
3
9
1
2
8
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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