5
7
1
4
9
3
8
4
9
5
1
6
7
9
1
7
2
4
5
2
6
4
5
1
2
8
9
6
4
7
8
2
5
6
1
6
1
7
6
1
This Sudoku Puzzle has 42 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing) techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 6 / Column 5 → 3 (Naked Single)
- Row 1 / Column 1 → 6 (Hidden Single)
- Row 2 / Column 1 → 2 (Full House)
- Row 2 / Column 5 → 8 (Naked Single)
- Row 2 / Column 7 → 3 (Full House)
- Row 2 / Column 9 → 3 (Full House)
- Row 1 / Column 4 → 3 (Naked Single)
- Row 1 / Column 6 → 2 (Full House)
- Row 1 / Column 9 → 8 (Full House)
- Row 4 / Column 6 → 6 (Hidden Single)
- Row 7 / Column 5 → 2 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 3 in b6 => r789c8<>3
- Row 8 / Column 8 → 5 (Naked Single)
- Row 7 / Column 8 → 8 (Naked Single)
- Row 8 / Column 5 → 9 (Naked Single)
- Row 4 / Column 5 → 5 (Full House)
- Row 4 / Column 8 → 3 (Naked Single)
- Row 9 / Column 8 → 2 (Full House)
- Row 5 / Column 8 → 2 (Full House)
- Row 7 / Column 4 → 5 (Naked Single)
- Row 9 / Column 7 → 4 (Naked Single)
- Row 7 / Column 6 → 3 (Naked Single)
- Row 7 / Column 3 → 9 (Full House)
- Row 8 / Column 3 → 3 (Full House)
- Row 8 / Column 7 → 7 (Full House)
- Row 8 / Column 9 → 7 (Full House)
- Row 9 / Column 4 → 8 (Naked Single)
- Row 9 / Column 6 → 3 (Full House)
- Row 9 / Column 9 → 9 (Naked Single)
- Row 6 / Column 7 → 1 (Naked Single)
- Row 6 / Column 1 → 7 (Full House)
- Row 4 / Column 9 → 4 (Naked Single)
- Row 5 / Column 9 → 4 (Naked Single)
- Row 4 / Column 4 → 7 (Full House)
- Row 5 / Column 4 → 7 (Full House)
- Row 4 / Column 7 → 8 (Naked Single)
- Row 5 / Column 7 → 5 (Full House)
- Row 4 / Column 1 → 1 (Naked Single)
- Row 5 / Column 1 → 3 (Full House)
- Row 4 / Column 2 → 9 (Full House)
- Row 5 / Column 2 → 8 (Full House)
- Row 5 / Column 6 → 9 (Naked Single)
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