7
9
6
3
6
8
4
1
3
8
6
2
8
5
2
6
1
3
4
9
5
3
6
8
4
3
8
5
2
1
2
5
8
3
9
7
1
4
9
8
6
3
2
8
1
5
6
4
9
6
5
2
9
1
7
8
This Sudoku Puzzle has 25 steps and it is solved using Full House, Naked Single techniques.
Naked Single
Explanation
Full House
Explanation
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