4
3
9
6
7
2
8
1
5
5
6
1
8
3
9
4
7
2
2
8
7
4
1
5
3
6
9
1
9
3
5
6
4
7
2
8
2
4
7
9
8
3
1
5
6
8
5
6
7
2
1
9
4
3
9
4
6
2
8
1
3
5
7
3
1
8
7
9
5
6
2
4
5
7
2
6
3
4
1
9
8
This Sudoku Puzzle has 34 steps and it is solved using Hidden Single, Naked Single, Full House techniques.
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