9
7
3
9
5
6
3
2
8
4
9
7
1
7
5
4
8
1
3
2
5
4
3
2
1
7
1
This Sudoku Puzzle has 62 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Locked Candidates Type 2 (Claiming), Naked Single, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 7 → 1 (Hidden Single)
- Row 2 / Column 2 → 3 (Hidden Single)
- Row 8 / Column 9 → 3 (Hidden Single)
- Row 3 / Column 2 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 4 in b3 => r9c9<>4
- Locked Candidates Type 1 (Pointing): 5 in b6 => r9c9<>5
- Locked Candidates Type 1 (Pointing): 6 in b6 => r789c7<>6
- Naked Triple: 1,2,6 in r46c3,r6c1 => r45c1<>2, r45c1<>6
- Locked Candidates Type 2 (Claiming): 6 in r5 => r4c56,r6c45<>6
- Naked Triple: 2,3,6 in r45c6,r5c4 => r46c5<>2
- Row 4 / Column 5 → 9 (Naked Single)
- Row 2 / Column 5 → 2 (Hidden Single)
- Row 2 / Column 4 → 5 (Hidden Single)
- Row 8 / Column 5 → 5 (Hidden Single)
- Row 9 / Column 8 → 5 (Hidden Single)
- Row 2 / Column 3 → 4 (Hidden Single)
- Naked Triple: 6,7,8 in r279c1 => r16c1<>6, r1c1<>8
- Locked Candidates Type 1 (Pointing): 6 in b4 => r138c3<>6
- Row 1 / Column 2 → 6 (Hidden Single)
- Row 9 / Column 2 → 9 (Naked Single)
- Row 8 / Column 2 → 1 (Full House)
- Row 7 / Column 4 → 9 (Hidden Single)
- Row 7 / Column 6 → 3 (Hidden Single)
- Row 4 / Column 6 → 2 (Naked Single)
- Row 4 / Column 3 → 6 (Naked Single)
- Row 5 / Column 6 → 6 (Naked Single)
- Row 4 / Column 7 → 7 (Naked Single)
- Row 5 / Column 4 → 3 (Naked Single)
- Row 8 / Column 6 → 8 (Naked Single)
- Row 4 / Column 9 → 5 (Naked Single)
- Row 4 / Column 1 → 3 (Full House)
- Row 7 / Column 7 → 4 (Naked Single)
- Row 8 / Column 7 → 9 (Naked Single)
- Row 5 / Column 1 → 5 (Naked Single)
- Row 5 / Column 9 → 2 (Full House)
- Row 8 / Column 3 → 7 (Naked Single)
- Row 8 / Column 8 → 6 (Full House)
- Row 7 / Column 5 → 6 (Naked Single)
- Row 9 / Column 4 → 4 (Full House)
- Row 9 / Column 7 → 2 (Naked Single)
- Row 6 / Column 7 → 6 (Full House)
- Row 6 / Column 9 → 9 (Full House)
- Row 9 / Column 9 → 8 (Naked Single)
- Row 7 / Column 8 → 7 (Full House)
- Row 7 / Column 1 → 8 (Full House)
- Row 9 / Column 1 → 6 (Full House)
- Row 6 / Column 4 → 8 (Naked Single)
- Row 3 / Column 4 → 6 (Full House)
- Row 6 / Column 5 → 4 (Full House)
- Row 3 / Column 5 → 8 (Full House)
- Row 1 / Column 9 → 4 (Naked Single)
- Row 3 / Column 9 → 7 (Full House)
- Row 2 / Column 8 → 8 (Naked Single)
- Row 2 / Column 1 → 7 (Full House)
- Row 1 / Column 8 → 9 (Full House)
- Row 3 / Column 3 → 1 (Naked Single)
- Row 3 / Column 6 → 4 (Full House)
- Row 1 / Column 6 → 1 (Full House)
- Row 1 / Column 1 → 2 (Naked Single)
- Row 1 / Column 3 → 8 (Full House)
- Row 6 / Column 3 → 2 (Full House)
- Row 6 / Column 1 → 1 (Full House)
Show More...