9
5
3
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8
6
2
6
8
4
6
5
5
7
2
9
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7
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5
8
1
This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Full House, Remote Pair techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 8 → 4 (Hidden Single)
- Row 3 / Column 3 → 4 (Hidden Single)
- Row 8 / Column 4 → 6 (Hidden Single)
- Row 4 / Column 4 → 4 (Hidden Single)
- Row 2 / Column 6 → 3 (Hidden Single)
- Row 3 / Column 9 → 9 (Hidden Single)
- Row 8 / Column 5 → 4 (Hidden Single)
- Row 5 / Column 5 → 3 (Hidden Single)
- Row 2 / Column 4 → 9 (Hidden Single)
- Row 3 / Column 4 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b5 => r78c6<>9
- Row 8 / Column 6 → 2 (Naked Single)
- Row 8 / Column 2 → 5 (Naked Single)
- Row 6 / Column 4 → 2 (Hidden Single)
- Row 5 / Column 1 → 5 (Hidden Single)
- Row 4 / Column 2 → 2 (Hidden Single)
- Row 1 / Column 1 → 6 (Hidden Single)
- Row 1 / Column 3 → 8 (Hidden Single)
- Row 1 / Column 5 → 2 (Hidden Single)
- Row 3 / Column 1 → 2 (Hidden Single)
- Row 2 / Column 1 → 7 (Hidden Single)
- Row 2 / Column 2 → 1 (Full House)
- Locked Candidates Type 1 (Pointing): 8 in b7 => r4c1<>8
- Row 4 / Column 6 → 8 (Hidden Single)
- Row 9 / Column 4 → 8 (Hidden Single)
- Row 7 / Column 1 → 8 (Hidden Single)
- Row 5 / Column 6 → 9 (Hidden Single)
- Remote Pair: 7/1 r3c7 -1- r3c5 -7- r1c4 -1- r5c4 -7- r6c6 -1- r7c6 => r5c7<>1, r7c7<>7
- Row 7 / Column 7 → 6 (Naked Single)
- Row 5 / Column 7 → 4 (Naked Single)
- Row 5 / Column 9 → 8 (Naked Single)
- Row 5 / Column 2 → 7 (Naked Single)
- Row 6 / Column 2 → 8 (Full House)
- Row 6 / Column 9 → 3 (Naked Single)
- Row 5 / Column 4 → 1 (Naked Single)
- Row 1 / Column 4 → 7 (Full House)
- Row 5 / Column 3 → 6 (Full House)
- Row 6 / Column 6 → 7 (Full House)
- Row 3 / Column 5 → 1 (Full House)
- Row 7 / Column 6 → 1 (Full House)
- Row 3 / Column 7 → 7 (Full House)
- Row 1 / Column 9 → 5 (Naked Single)
- Row 4 / Column 8 → 1 (Naked Single)
- Row 6 / Column 8 → 6 (Full House)
- Row 6 / Column 3 → 1 (Full House)
- Row 9 / Column 7 → 3 (Naked Single)
- Row 1 / Column 7 → 1 (Full House)
- Row 1 / Column 8 → 3 (Full House)
- Row 7 / Column 9 → 2 (Naked Single)
- Row 9 / Column 9 → 4 (Full House)
- Row 8 / Column 8 → 9 (Naked Single)
- Row 8 / Column 1 → 3 (Full House)
- Row 7 / Column 3 → 9 (Naked Single)
- Row 9 / Column 8 → 7 (Naked Single)
- Row 7 / Column 8 → 5 (Full House)
- Row 7 / Column 5 → 7 (Full House)
- Row 9 / Column 5 → 9 (Full House)
- Row 4 / Column 1 → 9 (Naked Single)
- Row 4 / Column 3 → 3 (Full House)
- Row 9 / Column 1 → 1 (Full House)
- Row 9 / Column 3 → 2 (Full House)
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