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