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