Solution for Evil Sudoku #2497168425339
7
8
6
9
4
5
2
1
3
3
4
2
1
6
7
5
9
8
5
9
1
8
3
2
6
7
4
4
3
2
5
6
1
8
7
9
8
7
1
4
3
9
6
2
5
9
6
5
7
2
8
1
4
3
1
2
4
6
9
8
3
5
7
7
5
6
2
1
3
9
8
4
3
8
9
4
5
7
2
1
6
This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Naked Triple, undefined, Naked Single techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 6 / Column 7 → 1 (Hidden Single)
- Row 4 / Column 6 → 1 (Hidden Single)
- Row 7 / Column 7 → 3 (Hidden Single)
- Row 2 / Column 1 → 9 (Hidden Single)
- Row 8 / Column 2 → 9 (Hidden Single)
- Row 9 / Column 4 → 9 (Hidden Single)
- Row 3 / Column 5 → 9 (Hidden Single)
- Row 9 / Column 8 → 1 (Hidden Single)
- Row 4 / Column 8 → 6 (Hidden Single)
- Row 6 / Column 4 → 6 (Hidden Single)
- Row 1 / Column 4 → 3 (Hidden Single)
- Row 8 / Column 3 → 8 (Hidden Single)
- Row 7 / Column 5 → 5 (Hidden Single)
- Row 9 / Column 9 → 6 (Hidden Single)
- Row 3 / Column 7 → 6 (Hidden Single)
- Row 5 / Column 2 → 6 (Hidden Single)
- Row 5 / Column 8 → 2 (Hidden Single)
- Row 7 / Column 6 → 6 (Hidden Single)
- Row 1 / Column 6 → 2 (Hidden Single)
- Row 3 / Column 4 → 5 (Hidden Single)
- Row 8 / Column 4 → 2 (Hidden Single)
- Row 7 / Column 4 → 7 (Full House)
- Row 9 / Column 6 → 4 (Full House)
- Row 9 / Column 3 → 7 (Full House)
- Locked Candidates Type 1 (Pointing): 3 in b6 => r3c9<>3
- Naked Triple: 2,4,7 in r4c13,r6c2 => r5c1<>7
- W-Wing: 2/4 in r4c3,r7c2 connected by 4 in r47c1 => r6c2,r7c3<>2
- Row 6 / Column 2 → 7 (Naked Single)
- Row 1 / Column 2 → 8 (Naked Single)
- Row 4 / Column 1 → 4 (Naked Single)
- Row 6 / Column 9 → 3 (Naked Single)
- Row 6 / Column 5 → 2 (Full House)
- Row 2 / Column 2 → 4 (Naked Single)
- Row 7 / Column 2 → 2 (Full House)
- Row 4 / Column 3 → 2 (Naked Single)
- Row 4 / Column 5 → 7 (Full House)
- Row 5 / Column 5 → 3 (Full House)
- Row 7 / Column 1 → 1 (Naked Single)
- Row 7 / Column 3 → 4 (Full House)
- Row 3 / Column 3 → 3 (Naked Single)
- Row 5 / Column 1 → 5 (Naked Single)
- Row 1 / Column 1 → 7 (Full House)
- Row 2 / Column 3 → 5 (Full House)
- Row 5 / Column 3 → 1 (Full House)
- Row 1 / Column 7 → 5 (Full House)
- Row 3 / Column 8 → 7 (Naked Single)
- Row 2 / Column 7 → 8 (Naked Single)
- Row 2 / Column 8 → 3 (Naked Single)
- Row 8 / Column 8 → 5 (Full House)
- Row 2 / Column 6 → 7 (Full House)
- Row 3 / Column 6 → 8 (Full House)
- Row 3 / Column 9 → 4 (Full House)
- Row 5 / Column 7 → 7 (Naked Single)
- Row 5 / Column 9 → 8 (Full House)
- Row 8 / Column 9 → 7 (Full House)
- Row 8 / Column 7 → 4 (Full House)
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