Solution for Evil Sudoku #1312678453939
2
1
5
8
4
6
7
3
9
4
3
8
9
7
2
5
6
1
6
7
9
5
1
3
4
8
2
9
6
3
4
7
1
5
2
8
8
4
7
2
9
5
6
1
3
2
5
1
3
6
8
7
9
4
3
8
7
1
9
2
6
5
4
1
2
6
7
5
4
3
8
9
9
4
5
8
3
6
1
2
7
This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Triple, undefined techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 6 / Column 4 → 6 (Hidden Single)
- Row 7 / Column 6 → 6 (Hidden Single)
- Row 1 / Column 2 → 1 (Hidden Single)
- Row 2 / Column 8 → 1 (Hidden Single)
- Row 5 / Column 3 → 1 (Hidden Single)
- Row 4 / Column 9 → 1 (Hidden Single)
- Row 7 / Column 7 → 9 (Hidden Single)
- Row 8 / Column 4 → 7 (Hidden Single)
- Row 4 / Column 6 → 7 (Hidden Single)
- Row 8 / Column 9 → 6 (Hidden Single)
- Row 3 / Column 8 → 8 (Hidden Single)
- Row 5 / Column 7 → 3 (Hidden Single)
- Row 4 / Column 1 → 9 (Hidden Single)
- Row 7 / Column 3 → 7 (Hidden Single)
- Row 9 / Column 9 → 7 (Hidden Single)
- Row 2 / Column 5 → 7 (Hidden Single)
- Row 8 / Column 5 → 5 (Hidden Single)
- Row 6 / Column 7 → 7 (Hidden Single)
- Row 4 / Column 8 → 5 (Hidden Single)
- Row 4 / Column 7 → 2 (Naked Single)
- Row 4 / Column 3 → 3 (Full House)
- Row 6 / Column 9 → 4 (Full House)
- Row 3 / Column 9 → 2 (Full House)
- Row 6 / Column 1 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b8 => r9c3<>9
- Naked Triple: 2,4,5 in r13c4,r2c6 => r1c5<>2
- W-Wing: 5/4 in r2c7,r3c4 connected by 4 in r1c47 => r2c6,r3c7<>5
- Row 2 / Column 6 → 2 (Naked Single)
- Row 1 / Column 4 → 4 (Naked Single)
- Row 2 / Column 1 → 8 (Naked Single)
- Row 9 / Column 6 → 9 (Naked Single)
- Row 5 / Column 6 → 5 (Full House)
- Row 1 / Column 7 → 6 (Naked Single)
- Row 3 / Column 4 → 5 (Naked Single)
- Row 5 / Column 4 → 2 (Full House)
- Row 5 / Column 5 → 9 (Full House)
- Row 2 / Column 2 → 4 (Naked Single)
- Row 2 / Column 7 → 5 (Full House)
- Row 3 / Column 7 → 4 (Full House)
- Row 1 / Column 5 → 3 (Naked Single)
- Row 1 / Column 1 → 2 (Full House)
- Row 3 / Column 5 → 6 (Full House)
- Row 7 / Column 1 → 3 (Full House)
- Row 3 / Column 3 → 9 (Naked Single)
- Row 3 / Column 2 → 3 (Full House)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 6 / Column 3 → 8 (Naked Single)
- Row 6 / Column 2 → 2 (Full House)
- Row 9 / Column 3 → 4 (Full House)
- Row 7 / Column 2 → 8 (Naked Single)
- Row 8 / Column 2 → 9 (Full House)
- Row 8 / Column 8 → 3 (Full House)
- Row 9 / Column 8 → 2 (Naked Single)
- Row 7 / Column 8 → 4 (Full House)
- Row 7 / Column 5 → 2 (Full House)
- Row 9 / Column 5 → 8 (Full House)
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