Solution for Evil Sudoku #1243768521939
9
1
6
8
7
9
2
8
4
8
4
9
1
5
4
8
5
4
1
2
7
6
7
6
5
2
4
7
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 7 → 9 (Hidden Single)
- Row 2 / Column 2 → 4 (Hidden Single)
- Row 1 / Column 4 → 4 (Hidden Single)
- Row 6 / Column 6 → 7 (Hidden Single)
- Row 7 / Column 5 → 4 (Hidden Single)
- Row 8 / Column 1 → 4 (Hidden Single)
- Row 4 / Column 7 → 7 (Hidden Single)
- Row 9 / Column 4 → 9 (Hidden Single)
- Row 1 / Column 8 → 7 (Hidden Single)
- Row 2 / Column 3 → 8 (Hidden Single)
- Row 6 / Column 8 → 6 (Hidden Single)
- Row 4 / Column 4 → 6 (Hidden Single)
- Row 3 / Column 5 → 1 (Hidden Single)
- Row 7 / Column 4 → 1 (Hidden Single)
- Row 9 / Column 6 → 2 (Hidden Single)
- Row 1 / Column 9 → 6 (Hidden Single)
- Row 2 / Column 4 → 2 (Hidden Single)
- Row 3 / Column 4 → 3 (Full House)
- Row 1 / Column 6 → 5 (Naked Single)
- Row 1 / Column 3 → 3 (Full House)
- Row 3 / Column 6 → 6 (Full House)
- Row 7 / Column 7 → 6 (Hidden Single)
- Row 5 / Column 2 → 6 (Hidden Single)
- Row 5 / Column 8 → 2 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b6 => r7c9<>9
- Naked Triple: 2,3,5 in r4c2,r6c13 => r5c1<>3
- W-Wing: 2/5 in r3c2,r6c3 connected by 5 in r36c1 => r3c3,r4c2<>2
- Row 4 / Column 2 → 3 (Naked Single)
- Row 4 / Column 9 → 9 (Naked Single)
- Row 4 / Column 5 → 2 (Full House)
- Row 6 / Column 1 → 5 (Naked Single)
- Row 9 / Column 2 → 8 (Naked Single)
- Row 6 / Column 5 → 3 (Naked Single)
- Row 6 / Column 3 → 2 (Full House)
- Row 5 / Column 5 → 9 (Full House)
- Row 3 / Column 1 → 7 (Naked Single)
- Row 8 / Column 2 → 5 (Naked Single)
- Row 3 / Column 2 → 2 (Full House)
- Row 3 / Column 3 → 5 (Full House)
- Row 5 / Column 1 → 1 (Naked Single)
- Row 5 / Column 3 → 7 (Full House)
- Row 9 / Column 1 → 3 (Full House)
- Row 9 / Column 7 → 1 (Full House)
- Row 7 / Column 3 → 9 (Naked Single)
- Row 8 / Column 3 → 1 (Full House)
- Row 7 / Column 8 → 3 (Naked Single)
- Row 2 / Column 8 → 1 (Naked Single)
- Row 8 / Column 8 → 9 (Full House)
- Row 7 / Column 6 → 8 (Naked Single)
- Row 7 / Column 9 → 5 (Full House)
- Row 8 / Column 7 → 8 (Full House)
- Row 8 / Column 6 → 3 (Full House)
- Row 2 / Column 9 → 3 (Naked Single)
- Row 2 / Column 7 → 5 (Full House)
- Row 5 / Column 7 → 3 (Full House)
- Row 5 / Column 9 → 8 (Full House)
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