Solution for Medium Sudoku #31628543719101
2
8
7
9
6
4
3
1
5
3
9
6
1
5
8
7
2
4
5
4
1
7
3
2
8
9
6
8
5
9
6
4
3
7
2
1
6
7
2
5
1
9
8
4
3
4
1
3
2
8
7
6
5
9
1
7
8
5
9
2
4
3
6
2
3
5
4
6
1
9
8
7
9
6
4
3
7
8
1
2
5
This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Locked Candidates Type 2 (Claiming), Naked Triple techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 6 → 8 (Hidden Single)
- Row 1 / Column 2 → 8 (Hidden Single)
- Row 7 / Column 8 → 6 (Hidden Single)
- Row 9 / Column 3 → 6 (Hidden Single)
- Row 7 / Column 6 → 5 (Hidden Single)
- Row 8 / Column 9 → 8 (Hidden Single)
- Row 3 / Column 2 → 1 (Hidden Single)
- Row 3 / Column 9 → 6 (Naked Single)
- Row 9 / Column 2 → 3 (Hidden Single)
- Row 7 / Column 1 → 1 (Hidden Single)
- Row 6 / Column 7 → 6 (Hidden Single)
- Row 1 / Column 7 → 5 (Hidden Single)
- Row 2 / Column 7 → 7 (Hidden Single)
- Row 2 / Column 1 → 9 (Naked Single)
- Row 1 / Column 3 → 7 (Full House)
- Locked Candidates Type 1 (Pointing): 3 in b2 => r1c89<>3
- Row 1 / Column 9 → 1 (Naked Single)
- Locked Candidates Type 1 (Pointing): 9 in b7 => r8c4<>9
- Locked Candidates Type 1 (Pointing): 2 in b9 => r9c46<>2
- Locked Candidates Type 1 (Pointing): 2 in b8 => r46c4<>2
- Naked Pair: 4,9 in r1c58 => r1c46<>4, r1c4<>9
- Naked Pair: 4,7 in r9c16 => r9c45<>4, r9c45<>7
- Locked Candidates Type 2 (Claiming): 7 in c5 => r4c46,r6c46<>7
- Naked Pair: 3,6 in r14c4 => r6c4<>3
- Naked Pair: 4,7 in r39c6 => r6c6<>4
- Naked Triple: 2,3,6 in r4c469 => r4c238<>2, r4c38<>3
- Row 4 / Column 3 → 9 (Naked Single)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 5 / Column 3 → 3 (Full House)
- Row 7 / Column 2 → 7 (Naked Single)
- Row 7 / Column 4 → 2 (Full House)
- Row 8 / Column 4 → 4 (Naked Single)
- Row 4 / Column 2 → 5 (Naked Single)
- Row 9 / Column 1 → 4 (Naked Single)
- Row 6 / Column 4 → 8 (Naked Single)
- Row 8 / Column 1 → 5 (Naked Single)
- Row 8 / Column 2 → 9 (Full House)
- Row 6 / Column 1 → 7 (Full House)
- Row 9 / Column 6 → 7 (Naked Single)
- Row 4 / Column 8 → 1 (Naked Single)
- Row 9 / Column 4 → 9 (Naked Single)
- Row 9 / Column 5 → 8 (Full House)
- Row 6 / Column 5 → 4 (Naked Single)
- Row 3 / Column 6 → 4 (Naked Single)
- Row 4 / Column 5 → 7 (Naked Single)
- Row 5 / Column 7 → 2 (Naked Single)
- Row 9 / Column 7 → 1 (Full House)
- Row 9 / Column 8 → 2 (Full House)
- Row 3 / Column 4 → 7 (Naked Single)
- Row 3 / Column 8 → 9 (Full House)
- Row 1 / Column 5 → 9 (Naked Single)
- Row 5 / Column 5 → 1 (Full House)
- Row 6 / Column 2 → 2 (Naked Single)
- Row 5 / Column 2 → 4 (Full House)
- Row 5 / Column 8 → 8 (Full House)
- Row 4 / Column 9 → 3 (Naked Single)
- Row 2 / Column 9 → 2 (Full House)
- Row 2 / Column 8 → 3 (Full House)
- Row 1 / Column 8 → 4 (Full House)
- Row 6 / Column 8 → 5 (Full House)
- Row 6 / Column 6 → 3 (Full House)
- Row 4 / Column 4 → 6 (Naked Single)
- Row 1 / Column 4 → 3 (Full House)
- Row 1 / Column 6 → 6 (Full House)
- Row 4 / Column 6 → 2 (Full House)
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