Solution for Evil Sudoku #1237713524895
9
1
4
8
6
3
2
5
5
3
6
5
7
4
2
1
9
1
3
2
8
5
6
9
7
3
4
7
8
9
1
4
2
3
8
7
6
2
4
5
3
8
9
7
4
1
5
3
2
9
7
4
5
3
4
7
8
6
2
6
5
3
1
2
5
3
4
1
9
8
8
7
9
1
1
8
7
5
6
4
2
This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Locked Candidates Type 2 (Claiming), Locked Pair, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 5 / Column 5 → 3 (Hidden Single)
- Row 2 / Column 4 → 7 (Hidden Single)
- Row 5 / Column 1 → 1 (Hidden Single)
- Row 8 / Column 8 → 7 (Hidden Single)
- Row 5 / Column 9 → 7 (Hidden Single)
- Row 7 / Column 1 → 4 (Hidden Single)
- Row 7 / Column 6 → 3 (Hidden Single)
- Row 9 / Column 2 → 3 (Hidden Single)
- Row 8 / Column 7 → 8 (Hidden Single)
- Row 7 / Column 5 → 5 (Hidden Single)
- Row 2 / Column 3 → 3 (Hidden Single)
- Row 9 / Column 1 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 1 in b2 => r3c9<>1
- Locked Candidates Type 1 (Pointing): 8 in b6 => r1c8<>8
- Locked Candidates Type 1 (Pointing): 6 in b7 => r8c6<>6
- Row 8 / Column 6 → 9 (Naked Single)
- Locked Candidates Type 1 (Pointing): 9 in b5 => r3c4<>9
- Locked Candidates Type 2 (Claiming): 9 in r7 => r9c79<>9
- Locked Pair: 2,6 in r9c79 => r7c789,r9c4<>2, r7c789,r9c45<>6
- Row 9 / Column 4 → 8 (Naked Single)
- Row 9 / Column 5 → 8 (Naked Single)
- Row 7 / Column 7 → 9 (Naked Single)
- Row 7 / Column 8 → 1 (Naked Single)
- Row 7 / Column 9 → 1 (Naked Single)
- Row 7 / Column 4 → 2 (Hidden Single)
- Row 1 / Column 9 → 8 (Hidden Single)
- Row 1 / Column 3 → 4 (Hidden Single)
- Row 3 / Column 9 → 4 (Hidden Single)
- Row 9 / Column 9 → 2 (Hidden Single)
- Row 9 / Column 7 → 6 (Naked Single)
- Row 2 / Column 7 → 5 (Naked Single)
- Row 1 / Column 8 → 2 (Hidden Single)
- Row 2 / Column 9 → 9 (Hidden Single)
- Row 2 / Column 2 → 6 (Full House)
- Row 2 / Column 8 → 6 (Full House)
- Row 1 / Column 1 → 9 (Naked Single)
- Row 8 / Column 2 → 2 (Naked Single)
- Row 8 / Column 1 → 6 (Full House)
- Row 3 / Column 1 → 2 (Full House)
- Row 3 / Column 2 → 5 (Full House)
- Row 8 / Column 3 → 6 (Full House)
- Row 3 / Column 3 → 5 (Full House)
- Row 5 / Column 8 → 9 (Naked Single)
- Row 1 / Column 5 → 6 (Naked Single)
- Row 1 / Column 6 → 5 (Full House)
- Row 4 / Column 3 → 9 (Naked Single)
- Row 5 / Column 2 → 4 (Naked Single)
- Row 5 / Column 3 → 2 (Full House)
- Row 4 / Column 2 → 8 (Full House)
- Row 5 / Column 7 → 2 (Full House)
- Row 6 / Column 2 → 8 (Full House)
- Row 3 / Column 4 → 1 (Naked Single)
- Row 3 / Column 5 → 9 (Naked Single)
- Row 3 / Column 6 → 1 (Full House)
- Row 4 / Column 4 → 6 (Naked Single)
- Row 6 / Column 4 → 9 (Full House)
- Row 4 / Column 6 → 4 (Full House)
- Row 4 / Column 8 → 5 (Full House)
- Row 6 / Column 6 → 4 (Full House)
- Row 6 / Column 7 → 4 (Naked Single)
- Row 6 / Column 8 → 5 (Naked Single)
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