Solution for Medium Sudoku #12975286143101
7
6
9
8
2
5
9
4
5
4
2
7
2
3
6
9
4
5
8
1
3
3
6
1
8
2
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 9 → 9 (Hidden Single)
- Row 2 / Column 1 → 5 (Hidden Single)
- Row 6 / Column 2 → 5 (Hidden Single)
- Row 8 / Column 7 → 9 (Hidden Single)
- Row 6 / Column 7 → 2 (Hidden Single)
- Row 9 / Column 8 → 5 (Hidden Single)
- Row 2 / Column 9 → 6 (Hidden Single)
- Row 2 / Column 3 → 4 (Hidden Single)
- Row 9 / Column 3 → 9 (Naked Single)
- Row 1 / Column 7 → 4 (Hidden Single)
- Row 7 / Column 6 → 9 (Hidden Single)
- Row 7 / Column 1 → 2 (Hidden Single)
- Row 7 / Column 2 → 1 (Hidden Single)
- Row 1 / Column 2 → 3 (Naked Single)
- Row 3 / Column 1 → 1 (Full House)
- Locked Candidates Type 1 (Pointing): 3 in b3 => r4c8<>3
- Locked Candidates Type 1 (Pointing): 6 in b4 => r89c1<>6
- Row 9 / Column 1 → 4 (Naked Single)
- Locked Candidates Type 1 (Pointing): 7 in b9 => r46c9<>7
- Locked Candidates Type 1 (Pointing): 7 in b6 => r4c46<>7
- Naked Pair: 1,8 in r6c39 => r6c16<>8, r6c46<>1
- Naked Pair: 3,8 in r58c1 => r4c1<>3, r4c1<>8
- Naked Pair: 1,8 in r16c9 => r45c9<>1, r45c9<>8
- Locked Candidates Type 2 (Claiming): 1 in r5 => r4c46<>1
- Naked Pair: 6,9 in r4c14 => r4c6<>6
- Naked Triple: 6,7,9 in r469c4 => r238c4<>7, r38c4<>6
- Row 3 / Column 4 → 3 (Naked Single)
- Row 3 / Column 8 → 7 (Naked Single)
- Row 3 / Column 5 → 6 (Full House)
- Row 2 / Column 7 → 1 (Naked Single)
- Row 4 / Column 7 → 7 (Full House)
- Row 4 / Column 8 → 8 (Naked Single)
- Row 1 / Column 9 → 8 (Naked Single)
- Row 2 / Column 4 → 2 (Naked Single)
- Row 1 / Column 8 → 2 (Naked Single)
- Row 1 / Column 6 → 1 (Full House)
- Row 2 / Column 8 → 3 (Full House)
- Row 4 / Column 6 → 5 (Naked Single)
- Row 6 / Column 9 → 1 (Naked Single)
- Row 8 / Column 4 → 4 (Naked Single)
- Row 4 / Column 9 → 3 (Naked Single)
- Row 5 / Column 9 → 5 (Full House)
- Row 5 / Column 6 → 8 (Naked Single)
- Row 6 / Column 3 → 8 (Naked Single)
- Row 5 / Column 4 → 1 (Naked Single)
- Row 7 / Column 5 → 7 (Naked Single)
- Row 7 / Column 9 → 4 (Full House)
- Row 8 / Column 9 → 7 (Full House)
- Row 4 / Column 3 → 1 (Naked Single)
- Row 8 / Column 3 → 3 (Full House)
- Row 2 / Column 6 → 7 (Naked Single)
- Row 2 / Column 5 → 8 (Full House)
- Row 5 / Column 1 → 3 (Naked Single)
- Row 5 / Column 5 → 4 (Full House)
- Row 8 / Column 5 → 5 (Full House)
- Row 9 / Column 4 → 6 (Naked Single)
- Row 8 / Column 6 → 2 (Full House)
- Row 6 / Column 6 → 6 (Full House)
- Row 9 / Column 2 → 7 (Full House)
- Row 8 / Column 2 → 6 (Full House)
- Row 8 / Column 1 → 8 (Full House)
- Row 4 / Column 4 → 9 (Naked Single)
- Row 4 / Column 1 → 6 (Full House)
- Row 6 / Column 1 → 9 (Full House)
- Row 6 / Column 4 → 7 (Full House)
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