5
1
2
3
7
4
2
9
4
6
7
5
3
3
7
4
2
4
8
2
3
5
9
7
6
2
3
9
7
4
8
6
7
9
1
4
3
2
3
4
7
2
2
3
4
6
7
5
7
5
8
2
4
3
This Sudoku Puzzle has 27 steps and it is solved using Full House, Naked Single techniques.
Naked Single
Explanation
Full House
Explanation
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