Solution for Medium Sudoku #12698253147101
9
3
6
5
2
8
6
4
8
4
2
9
2
7
3
6
4
8
5
1
7
7
3
1
5
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 → 6 (Hidden Single)
- Row 2 / Column 1 → 8 (Hidden Single)
- Row 6 / Column 2 → 8 (Hidden Single)
- Row 8 / Column 7 → 6 (Hidden Single)
- Row 6 / Column 7 → 2 (Hidden Single)
- Row 9 / Column 8 → 8 (Hidden Single)
- Row 2 / Column 9 → 3 (Hidden Single)
- Row 2 / Column 3 → 4 (Hidden Single)
- Row 9 / Column 3 → 6 (Naked Single)
- Row 1 / Column 7 → 4 (Hidden Single)
- Row 7 / Column 6 → 6 (Hidden Single)
- Row 7 / Column 1 → 2 (Hidden Single)
- Row 7 / Column 2 → 1 (Hidden Single)
- Row 1 / Column 2 → 7 (Naked Single)
- Row 3 / Column 1 → 1 (Full House)
- Locked Candidates Type 1 (Pointing): 7 in b3 => r4c8<>7
- Locked Candidates Type 1 (Pointing): 3 in b4 => r89c1<>3
- Row 9 / Column 1 → 4 (Naked Single)
- Locked Candidates Type 1 (Pointing): 9 in b9 => r46c9<>9
- Locked Candidates Type 1 (Pointing): 9 in b6 => r4c46<>9
- Naked Pair: 1,5 in r6c39 => r6c16<>5, r6c46<>1
- Naked Pair: 5,7 in r58c1 => r4c1<>5, r4c1<>7
- Naked Pair: 1,5 in r16c9 => r45c9<>1, r45c9<>5
- Locked Candidates Type 2 (Claiming): 1 in r5 => r4c46<>1
- Naked Pair: 3,6 in r4c14 => r4c6<>3
- Naked Triple: 3,6,9 in r469c4 => r238c4<>9, r38c4<>3
- Row 3 / Column 4 → 7 (Naked Single)
- Row 3 / Column 8 → 9 (Naked Single)
- Row 3 / Column 5 → 3 (Full House)
- Row 2 / Column 7 → 1 (Naked Single)
- Row 4 / Column 7 → 9 (Full House)
- Row 4 / Column 8 → 5 (Naked Single)
- Row 1 / Column 9 → 5 (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 → 7 (Full House)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 6 / Column 9 → 1 (Naked Single)
- Row 8 / Column 4 → 4 (Naked Single)
- Row 4 / Column 9 → 7 (Naked Single)
- Row 5 / Column 9 → 8 (Full House)
- Row 5 / Column 6 → 5 (Naked Single)
- Row 6 / Column 3 → 5 (Naked Single)
- Row 5 / Column 4 → 1 (Naked Single)
- Row 7 / Column 5 → 9 (Naked Single)
- Row 7 / Column 9 → 4 (Full House)
- Row 8 / Column 9 → 9 (Full House)
- Row 4 / Column 3 → 1 (Naked Single)
- Row 8 / Column 3 → 7 (Full House)
- Row 2 / Column 6 → 9 (Naked Single)
- Row 2 / Column 5 → 5 (Full House)
- Row 5 / Column 1 → 7 (Naked Single)
- Row 5 / Column 5 → 4 (Full House)
- Row 8 / Column 5 → 8 (Full House)
- Row 9 / Column 4 → 3 (Naked Single)
- Row 8 / Column 6 → 2 (Full House)
- Row 6 / Column 6 → 3 (Full House)
- Row 9 / Column 2 → 9 (Full House)
- Row 8 / Column 2 → 3 (Full House)
- Row 8 / Column 1 → 5 (Full House)
- Row 4 / Column 4 → 6 (Naked Single)
- Row 4 / Column 1 → 3 (Full House)
- Row 6 / Column 1 → 6 (Full House)
- Row 6 / Column 4 → 9 (Full House)
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