Solution for Evil Sudoku #3448156793239
5
1
9
8
3
7
4
6
2
7
6
4
2
1
9
5
3
8
8
3
2
6
4
5
7
9
1
2
7
1
6
9
8
3
5
4
3
9
5
4
2
7
1
8
6
4
8
6
1
5
3
9
2
7
7
8
5
9
2
6
1
4
3
6
4
3
8
5
1
9
7
2
2
1
9
3
7
4
5
6
8
This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Full House, Naked Single, Locked Candidates Type 1 (Pointing), Naked Triple, undefined techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 3 / Column 3 → 2 (Hidden Single)
- Row 2 / Column 8 → 4 (Hidden Single)
- Row 1 / Column 6 → 4 (Hidden Single)
- Row 6 / Column 4 → 1 (Hidden Single)
- Row 4 / Column 3 → 1 (Hidden Single)
- Row 7 / Column 5 → 4 (Hidden Single)
- Row 8 / Column 9 → 4 (Hidden Single)
- Row 9 / Column 6 → 2 (Hidden Single)
- Row 1 / Column 2 → 1 (Hidden Single)
- Row 2 / Column 7 → 6 (Hidden Single)
- Row 6 / Column 2 → 5 (Hidden Single)
- Row 4 / Column 6 → 5 (Hidden Single)
- Row 3 / Column 5 → 3 (Hidden Single)
- Row 7 / Column 6 → 3 (Hidden Single)
- Row 9 / Column 4 → 9 (Hidden Single)
- Row 1 / Column 1 → 5 (Hidden Single)
- Row 2 / Column 6 → 9 (Hidden Single)
- Row 3 / Column 6 → 8 (Full House)
- Row 1 / Column 4 → 7 (Naked Single)
- Row 1 / Column 7 → 8 (Full House)
- Row 3 / Column 4 → 5 (Full House)
- Row 5 / Column 8 → 5 (Hidden Single)
- Row 7 / Column 3 → 5 (Hidden Single)
- Row 5 / Column 2 → 9 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 2 in b4 => r7c1<>2
- Naked Triple: 7,8,9 in r4c8,r6c79 => r5c9<>8
- W-Wing: 9/7 in r3c8,r6c7 connected by 7 in r36c9 => r3c7,r4c8<>9
- Row 4 / Column 8 → 8 (Naked Single)
- Row 4 / Column 1 → 2 (Naked Single)
- Row 4 / Column 5 → 9 (Full House)
- Row 6 / Column 9 → 7 (Naked Single)
- Row 9 / Column 8 → 6 (Naked Single)
- Row 6 / Column 5 → 8 (Naked Single)
- Row 6 / Column 7 → 9 (Full House)
- Row 5 / Column 5 → 2 (Full House)
- Row 3 / Column 9 → 1 (Naked Single)
- Row 8 / Column 8 → 7 (Naked Single)
- Row 3 / Column 8 → 9 (Full House)
- Row 3 / Column 7 → 7 (Full House)
- Row 5 / Column 9 → 3 (Naked Single)
- Row 5 / Column 7 → 1 (Full House)
- Row 9 / Column 9 → 8 (Full House)
- Row 9 / Column 3 → 3 (Full House)
- Row 7 / Column 7 → 2 (Naked Single)
- Row 8 / Column 7 → 3 (Full House)
- Row 7 / Column 2 → 8 (Naked Single)
- Row 2 / Column 2 → 3 (Naked Single)
- Row 8 / Column 2 → 2 (Full House)
- Row 7 / Column 4 → 6 (Naked Single)
- Row 7 / Column 1 → 7 (Full House)
- Row 8 / Column 3 → 6 (Full House)
- Row 8 / Column 4 → 8 (Full House)
- Row 2 / Column 1 → 8 (Naked Single)
- Row 2 / Column 3 → 7 (Full House)
- Row 5 / Column 3 → 8 (Full House)
- Row 5 / Column 1 → 6 (Full House)
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