Solution for Evil Sudoku #1247713524895
2
1
6
8
3
6
2
5
4
3
8
9
7
4
2
8
6
6
4
5
8
9
1
1
7
3
6
7
8
5
1
6
9
4
8
7
6
2
3
5
3
8
1
7
1
1
9
4
2
2
7
5
6
3
6
7
8
3
2
2
5
9
1
2
9
5
4
1
6
8
5
7
3
1
9
8
7
5
6
4
2
This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Triple, Naked Single, Hidden Pair, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Hidden Pair
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 4 → 7 (Hidden Single)
- Row 5 / Column 1 → 1 (Hidden Single)
- Row 3 / Column 3 → 4 (Hidden Single)
- Row 8 / Column 8 → 7 (Hidden Single)
- Row 5 / Column 9 → 7 (Hidden Single)
- Row 8 / Column 7 → 8 (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 2 (Claiming): 2 in r8 => r79c1,r9c2<>2
- Locked Candidates Type 2 (Claiming): 3 in c1 => r8c23,r9c2<>3
- Naked Triple: 3,6,9 in r4c46,r5c5 => r6c46<>6, r6c46<>9
- Row 6 / Column 4 → 1 (Naked Single)
- Row 6 / Column 6 → 1 (Naked Single)
- Hidden Pair: 1,3 in r4c6,r5c5 => r4c6,r5c5<>6, r4c6,r5c5<>9
- Row 4 / Column 6 → 3 (Naked Single)
- Row 5 / Column 5 → 3 (Naked Single)
- Row 4 / Column 4 → 6 (Hidden Single)
- Row 8 / Column 1 → 3 (Hidden Single)
- Row 2 / Column 2 → 3 (Hidden Single)
- Row 7 / Column 7 → 3 (Hidden Single)
- Locked Candidates Type 2 (Claiming): 2 in c1 => r1c3,r3c2<>2
- Naked Triple: 5,6,9 in r12c3,r3c2 => r13c1<>5, r13c1<>6, r13c1<>9
- Row 1 / Column 1 → 2 (Naked Single)
- Row 3 / Column 1 → 2 (Naked Single)
- Locked Candidates Type 2 (Claiming): 5 in c1 => r9c2<>5
- Locked Candidates Type 2 (Claiming): 6 in c1 => r8c23,r9c2<>6
- Row 9 / Column 2 → 9 (Naked Single)
- Row 8 / Column 2 → 2 (Naked Single)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 5 / Column 2 → 6 (Naked Single)
- Row 3 / Column 2 → 5 (Naked Single)
- Row 4 / Column 2 → 8 (Full House)
- Row 6 / Column 2 → 8 (Full House)
- Row 5 / Column 3 → 9 (Naked Single)
- Row 1 / Column 3 → 6 (Naked Single)
- Row 2 / Column 3 → 6 (Naked Single)
- Row 4 / Column 3 → 5 (Naked Single)
- Row 4 / Column 8 → 9 (Full House)
- Row 5 / Column 7 → 2 (Naked Single)
- Row 5 / Column 8 → 2 (Naked Single)
- Row 1 / Column 8 → 5 (Naked Single)
- Row 9 / Column 7 → 6 (Naked Single)
- Row 1 / Column 6 → 9 (Naked Single)
- Row 1 / Column 5 → 8 (Full House)
- Row 1 / Column 9 → 8 (Full House)
- Row 2 / Column 7 → 9 (Naked Single)
- Row 6 / Column 7 → 5 (Full House)
- Row 2 / Column 8 → 1 (Naked Single)
- Row 6 / Column 8 → 6 (Naked Single)
- Row 7 / Column 8 → 1 (Naked Single)
- Row 9 / Column 1 → 5 (Naked Single)
- Row 9 / Column 9 → 2 (Naked Single)
- Row 3 / Column 4 → 8 (Naked Single)
- Row 3 / Column 6 → 6 (Naked Single)
- Row 8 / Column 6 → 6 (Naked Single)
- Row 3 / Column 5 → 6 (Naked Single)
- Row 9 / Column 5 → 5 (Naked Single)
- Row 2 / Column 9 → 1 (Naked Single)
- Row 3 / Column 9 → 6 (Naked Single)
- Row 7 / Column 1 → 6 (Naked Single)
- Row 7 / Column 9 → 9 (Naked Single)
- Row 9 / Column 4 → 8 (Naked Single)
- Row 7 / Column 6 → 5 (Naked Single)
- Row 7 / Column 5 → 9 (Naked Single)
- Row 7 / Column 4 → 2 (Naked Single)
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