Solution for Medium Sudoku #22125687349101
8
6
4
7
9
3
1
2
5
3
1
5
2
8
6
4
7
9
7
9
2
4
1
5
6
8
3
9
8
2
5
1
7
3
4
6
5
6
1
8
4
3
7
9
2
3
4
7
2
6
9
8
5
1
4
7
9
2
3
1
6
5
8
1
2
8
6
5
4
9
3
7
5
3
6
9
7
8
1
2
4
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 3 / Column 1 → 1 (Hidden Single)
- Row 2 / Column 9 → 5 (Hidden Single)
- Row 6 / Column 8 → 5 (Hidden Single)
- Row 6 / Column 3 → 6 (Hidden Single)
- Row 8 / Column 3 → 1 (Hidden Single)
- Row 9 / Column 2 → 5 (Hidden Single)
- Row 2 / Column 1 → 7 (Hidden Single)
- Row 2 / Column 7 → 4 (Hidden Single)
- Row 9 / Column 7 → 1 (Naked Single)
- Row 1 / Column 3 → 4 (Hidden Single)
- Row 7 / Column 4 → 1 (Hidden Single)
- Row 7 / Column 9 → 6 (Hidden Single)
- Row 7 / Column 8 → 3 (Hidden Single)
- Row 1 / Column 8 → 9 (Naked Single)
- Row 3 / Column 9 → 3 (Full House)
- Locked Candidates Type 1 (Pointing): 9 in b1 => r4c2<>9
- Locked Candidates Type 1 (Pointing): 7 in b6 => r89c9<>7
- Row 9 / Column 9 → 4 (Naked Single)
- Locked Candidates Type 1 (Pointing): 2 in b7 => r46c1<>2
- Locked Candidates Type 1 (Pointing): 2 in b4 => r4c46<>2
- Naked Pair: 3,8 in r6c17 => r6c46<>3, r6c49<>8
- Naked Pair: 3,8 in r16c1 => r45c1<>3, r45c1<>8
- Locked Candidates Type 2 (Claiming): 3 in r5 => r4c46<>3
- Naked Pair: 8,9 in r58c9 => r4c9<>8, r4c9<>9
- Naked Pair: 1,7 in r4c69 => r4c4<>7
- Naked Triple: 1,2,7 in r469c6 => r238c6<>2, r38c6<>7
- Row 3 / Column 6 → 9 (Naked Single)
- Row 3 / Column 2 → 2 (Naked Single)
- Row 3 / Column 5 → 7 (Full House)
- Row 2 / Column 3 → 3 (Naked Single)
- Row 4 / Column 3 → 2 (Full House)
- Row 4 / Column 2 → 8 (Naked Single)
- Row 1 / Column 1 → 8 (Naked Single)
- Row 2 / Column 6 → 6 (Naked Single)
- Row 1 / Column 2 → 6 (Naked Single)
- Row 1 / Column 4 → 3 (Full House)
- Row 2 / Column 2 → 9 (Full House)
- Row 4 / Column 4 → 5 (Naked Single)
- Row 6 / Column 1 → 3 (Naked Single)
- Row 8 / Column 6 → 4 (Naked Single)
- Row 4 / Column 1 → 9 (Naked Single)
- Row 5 / Column 1 → 5 (Full House)
- Row 5 / Column 4 → 8 (Naked Single)
- Row 6 / Column 7 → 8 (Naked Single)
- Row 5 / Column 6 → 3 (Naked Single)
- Row 7 / Column 5 → 2 (Naked Single)
- Row 7 / Column 1 → 4 (Full House)
- Row 8 / Column 1 → 2 (Full House)
- Row 4 / Column 7 → 3 (Naked Single)
- Row 8 / Column 7 → 9 (Full House)
- Row 2 / Column 4 → 2 (Naked Single)
- Row 2 / Column 5 → 8 (Full House)
- Row 5 / Column 5 → 4 (Naked Single)
- Row 5 / Column 9 → 9 (Full House)
- Row 8 / Column 5 → 5 (Full House)
- Row 9 / Column 6 → 7 (Naked Single)
- Row 8 / Column 4 → 6 (Full House)
- Row 6 / Column 4 → 7 (Full House)
- Row 9 / Column 8 → 2 (Full House)
- Row 8 / Column 8 → 7 (Full House)
- Row 8 / Column 9 → 8 (Full House)
- Row 4 / Column 6 → 1 (Naked Single)
- Row 4 / Column 9 → 7 (Full House)
- Row 6 / Column 9 → 1 (Full House)
- Row 6 / Column 6 → 2 (Full House)
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