1
9
3
5
6
8
3
2
1
5
6
7
1
7
8
6
3
8
2
3
9
1
6
4
7
5
2
This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Naked Pair, Hidden Pair techniques.
Naked Single
Explanation
Hidden Single
Explanation
Hidden Pair
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 4 / Column 5 → 9 (Naked Single)
- Row 6 / Column 5 → 6 (Full House)
- Row 3 / Column 6 → 1 (Hidden Single)
- Row 8 / Column 2 → 7 (Hidden Single)
- Row 5 / Column 7 → 5 (Hidden Single)
- Row 1 / Column 8 → 3 (Hidden Single)
- Row 1 / Column 6 → 9 (Hidden Single)
- Row 8 / Column 7 → 3 (Hidden Single)
- Row 5 / Column 2 → 2 (Hidden Single)
- Row 9 / Column 6 → 7 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 4 in b2 => r46c4<>4
- Locked Candidates Type 1 (Pointing): 9 in b4 => r79c3<>9
- Naked Pair: 4,7 in r2c38 => r2c19<>4
- Hidden Pair: 6,8 in r37c8 => r37c8<>4, r3c8<>7, r37c8<>9, r7c8<>1
- Row 9 / Column 9 → 1 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b9 => r3c7<>9
- Row 3 / Column 9 → 9 (Hidden Single)
- Row 3 / Column 2 → 5 (Hidden Single)
- Row 2 / Column 1 → 2 (Naked Single)
- Row 2 / Column 9 → 5 (Naked Single)
- Locked Candidates Type 1 (Pointing): 6 in b1 => r79c3<>6
- Naked Pair: 4,8 in r18c1 => r47c1<>4, r479c1<>8
- Row 4 / Column 1 → 1 (Naked Single)
- Row 4 / Column 2 → 8 (Hidden Single)
- Row 6 / Column 8 → 1 (Hidden Single)
- Row 7 / Column 3 → 1 (Hidden Single)
- Row 4 / Column 4 → 3 (Hidden Single)
- Row 6 / Column 3 → 9 (Hidden Single)
- Row 5 / Column 3 → 4 (Naked Single)
- Row 5 / Column 8 → 9 (Full House)
- Row 6 / Column 2 → 3 (Full House)
- Row 2 / Column 3 → 7 (Naked Single)
- Row 2 / Column 8 → 4 (Full House)
- Row 9 / Column 2 → 6 (Naked Single)
- Row 7 / Column 2 → 4 (Full House)
- Row 4 / Column 8 → 7 (Naked Single)
- Row 9 / Column 7 → 9 (Naked Single)
- Row 8 / Column 1 → 8 (Naked Single)
- Row 8 / Column 9 → 4 (Full House)
- Row 7 / Column 7 → 6 (Naked Single)
- Row 7 / Column 8 → 8 (Full House)
- Row 3 / Column 8 → 6 (Full House)
- Row 9 / Column 1 → 5 (Naked Single)
- Row 1 / Column 1 → 4 (Naked Single)
- Row 7 / Column 1 → 9 (Full House)
- Row 9 / Column 3 → 3 (Full House)
- Row 9 / Column 4 → 8 (Full House)
- Row 6 / Column 9 → 2 (Naked Single)
- Row 1 / Column 9 → 8 (Full House)
- Row 4 / Column 7 → 4 (Full House)
- Row 4 / Column 6 → 2 (Full House)
- Row 3 / Column 7 → 7 (Naked Single)
- Row 1 / Column 7 → 2 (Full House)
- Row 3 / Column 3 → 8 (Naked Single)
- Row 1 / Column 3 → 6 (Full House)
- Row 1 / Column 4 → 7 (Full House)
- Row 3 / Column 4 → 4 (Full House)
- Row 6 / Column 4 → 5 (Naked Single)
- Row 6 / Column 6 → 4 (Full House)
- Row 7 / Column 6 → 5 (Full House)
- Row 7 / Column 4 → 2 (Full House)
Show More...