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