6
1
3
6
4
8
4
8
3
9
8
7
1
5
9
3
3
7
6
4
5
7
1
8
5
4
This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Pair, Naked Triple, undefined techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 3 → 8 (Hidden Single)
- Row 1 / Column 4 → 3 (Hidden Single)
- Row 6 / Column 5 → 7 (Hidden Single)
- Row 3 / Column 5 → 2 (Naked Single)
- Row 4 / Column 8 → 5 (Hidden Single)
- Row 3 / Column 8 → 6 (Naked Single)
- Row 3 / Column 7 → 7 (Naked Single)
- Row 3 / Column 1 → 5 (Full House)
- Row 2 / Column 9 → 5 (Hidden Single)
- Row 2 / Column 4 → 1 (Naked Single)
- Row 2 / Column 5 → 9 (Naked Single)
- Row 2 / Column 8 → 2 (Naked Single)
- Row 1 / Column 7 → 1 (Full House)
- Row 2 / Column 6 → 7 (Naked Single)
- Row 1 / Column 6 → 5 (Full House)
- Row 2 / Column 1 → 4 (Full House)
- Row 8 / Column 5 → 3 (Naked Single)
- Row 4 / Column 7 → 2 (Naked Single)
- Row 9 / Column 5 → 4 (Naked Single)
- Row 6 / Column 9 → 1 (Naked Single)
- Row 4 / Column 5 → 1 (Naked Single)
- Row 5 / Column 5 → 8 (Full House)
- Row 5 / Column 7 → 9 (Naked Single)
- Row 6 / Column 8 → 8 (Full House)
- Row 9 / Column 7 → 6 (Naked Single)
- Row 7 / Column 7 → 8 (Full House)
- Row 8 / Column 8 → 9 (Naked Single)
- Row 9 / Column 2 → 5 (Hidden Single)
- Row 5 / Column 4 → 5 (Hidden Single)
- Row 8 / Column 2 → 8 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 6 in b8 => r7c13<>6
- Locked Candidates Type 2 (Claiming): 2 in r8 => r7c123,r9c13<>2
- Naked Pair: 2,9 in r16c2 => r5c2<>2, r7c2<>9
- Naked Triple: 2,7,9 in r9c369 => r9c1<>7, r9c1<>9
- W-Wing: 6/2 in r6c4,r8c1 connected by 2 in r5c16 => r6c1<>6
- Row 6 / Column 4 → 6 (Hidden Single)
- Row 7 / Column 4 → 2 (Full House)
- Row 4 / Column 6 → 4 (Naked Single)
- Row 4 / Column 3 → 6 (Full House)
- Row 5 / Column 6 → 2 (Full House)
- Row 7 / Column 9 → 7 (Naked Single)
- Row 9 / Column 9 → 2 (Full House)
- Row 9 / Column 6 → 9 (Naked Single)
- Row 7 / Column 6 → 6 (Full House)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 8 / Column 1 → 6 (Full House)
- Row 5 / Column 1 → 3 (Naked Single)
- Row 5 / Column 2 → 4 (Full House)
- Row 9 / Column 3 → 7 (Naked Single)
- Row 9 / Column 1 → 1 (Naked Single)
- Row 9 / Column 8 → 3 (Full House)
- Row 7 / Column 8 → 1 (Full House)
- Row 7 / Column 2 → 3 (Naked Single)
- Row 1 / Column 3 → 9 (Naked Single)
- Row 7 / Column 3 → 4 (Full House)
- Row 7 / Column 1 → 9 (Full House)
- Row 1 / Column 2 → 2 (Naked Single)
- Row 1 / Column 1 → 7 (Full House)
- Row 6 / Column 1 → 2 (Full House)
- Row 6 / Column 2 → 9 (Full House)
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