9
2
5
6
4
1
3
8
7
8
6
7
2
3
5
1
9
4
3
4
1
9
7
8
2
6
5
1
9
2
8
7
3
4
5
6
7
8
3
4
5
6
9
2
1
4
5
6
1
9
2
5
1
9
2
3
8
7
6
4
6
4
2
5
7
9
3
1
8
6
1
4
5
2
9
This Sudoku Puzzle has 55 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Remote Pair, Skyscraper, undefined, Uniqueness Test 3, Full House, Bivalue Universal Grave + 1, Give Up techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
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