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