2
3
9
5
1
8
7
6
4
7
2
9
4
8
3
5
5
8
4
7
3
6
2
1
9
3
4
7
9
8
6
1
5
2
5
3
7
2
4
8
9
9
2
8
1
4
5
3
6
7
6
9
1
8
2
5
4
7
3
5
4
3
7
9
2
8
8
7
2
4
9
3
6
5
1
This Sudoku Puzzle has 53 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Uniqueness Test 1, Give Up techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
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