Solution for Evil Sudoku #1315493267892
5
6
8
7
3
1
9
4
2
2
4
7
6
9
8
5
1
3
1
9
3
5
2
4
6
7
8
8
5
9
6
2
4
1
7
3
7
6
4
3
5
1
9
8
2
2
3
1
7
8
9
4
6
5
4
1
6
2
8
5
3
9
7
8
7
9
4
3
6
1
2
5
3
5
2
9
1
7
8
4
6
This Sudoku Puzzle has 71 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Full House, Naked Pair techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 6 / Column 2 → 7 (Hidden Single)
- Row 8 / Column 9 → 7 (Hidden Single)
- Row 9 / Column 4 → 1 (Hidden Single)
- Row 3 / Column 5 → 1 (Hidden Single)
- Row 9 / Column 6 → 5 (Hidden Single)
- Locked Pair: 3,8 in r23c6 => r1c46,r3c4,r48c6<>3, r1c46,r3c4,r78c6<>8
- Row 1 / Column 6 → 7 (Naked Single)
- Row 4 / Column 4 → 7 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 5 in b2 => r56c4<>5
- Locked Candidates Type 1 (Pointing): 6 in b3 => r46c7<>6
- Locked Candidates Type 1 (Pointing): 1 in b4 => r6c789<>1
- Locked Candidates Type 1 (Pointing): 9 in b5 => r78c4<>9
- Locked Candidates Type 1 (Pointing): 3 in b8 => r8c12<>3
- Locked Candidates Type 2 (Claiming): 5 in r2 => r1c79,r3c79<>5
- Locked Candidates Type 2 (Claiming): 9 in r9 => r78c1,r8c2<>9
- Locked Pair: 2,4 in r78c1 => r13c1,r7c3<>2, r36c1,r7c3,r8c2<>4
- Row 3 / Column 2 → 4 (Hidden Single)
- Row 3 / Column 1 → 9 (Hidden Single)
- Row 9 / Column 1 → 3 (Naked Single)
- Row 9 / Column 2 → 9 (Full House)
- Row 6 / Column 1 → 1 (Naked Single)
- Row 1 / Column 1 → 5 (Naked Single)
- Row 1 / Column 4 → 2 (Naked Single)
- Row 3 / Column 4 → 5 (Naked Single)
- Locked Candidates Type 1 (Pointing): 3 in b4 => r123c3<>3
- Naked Pair: 3,8 in r2c26 => r2c38<>8, r2c8<>3
- Locked Candidates Type 1 (Pointing): 3 in b3 => r456c9<>3
- Locked Candidates Type 1 (Pointing): 8 in b3 => r56c9<>8
- Locked Pair: 5,9 in r56c9 => r56c8,r6c7,r7c9<>5, r6c7,r7c9<>9
- Row 7 / Column 9 → 2 (Naked Single)
- Row 6 / Column 7 → 4 (Naked Single)
- Row 4 / Column 9 → 1 (Naked Single)
- Row 7 / Column 1 → 4 (Naked Single)
- Row 8 / Column 1 → 2 (Full House)
- Row 7 / Column 8 → 5 (Naked Single)
- Row 8 / Column 8 → 1 (Naked Single)
- Row 8 / Column 7 → 9 (Full House)
- Row 6 / Column 3 → 3 (Naked Single)
- Row 5 / Column 3 → 4 (Full House)
- Row 4 / Column 7 → 2 (Naked Single)
- Row 7 / Column 4 → 8 (Naked Single)
- Row 2 / Column 8 → 2 (Naked Single)
- Row 3 / Column 7 → 6 (Naked Single)
- Row 6 / Column 4 → 9 (Naked Single)
- Row 7 / Column 3 → 6 (Naked Single)
- Row 7 / Column 6 → 9 (Full House)
- Row 8 / Column 2 → 8 (Full House)
- Row 2 / Column 3 → 1 (Naked Single)
- Row 1 / Column 7 → 1 (Naked Single)
- Row 2 / Column 7 → 5 (Full House)
- Row 5 / Column 4 → 3 (Naked Single)
- Row 8 / Column 4 → 4 (Full House)
- Row 6 / Column 9 → 5 (Naked Single)
- Row 2 / Column 2 → 3 (Naked Single)
- Row 1 / Column 2 → 6 (Full House)
- Row 2 / Column 6 → 8 (Full House)
- Row 3 / Column 6 → 3 (Full House)
- Row 1 / Column 3 → 8 (Naked Single)
- Row 1 / Column 9 → 3 (Full House)
- Row 3 / Column 9 → 8 (Full House)
- Row 5 / Column 9 → 9 (Full House)
- Row 3 / Column 3 → 2 (Full House)
- Row 4 / Column 5 → 6 (Naked Single)
- Row 5 / Column 8 → 8 (Naked Single)
- Row 5 / Column 5 → 5 (Full House)
- Row 8 / Column 6 → 6 (Naked Single)
- Row 4 / Column 6 → 4 (Full House)
- Row 4 / Column 8 → 3 (Full House)
- Row 6 / Column 5 → 8 (Full House)
- Row 8 / Column 5 → 3 (Full House)
- Row 6 / Column 8 → 6 (Full House)
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