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