Solution for Evil Sudoku #1282619745396
2
6
7
8
3
1
7
4
6
4
3
8
5
1
7
2
9
2
4
8
5
7
6
4
This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Locked Candidates Type 1 (Pointing), Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 5 / Column 8 → 8 (Hidden Single)
- Row 4 / Column 1 → 2 (Hidden Single)
- Row 5 / Column 2 → 5 (Hidden Single)
- Row 1 / Column 8 → 7 (Hidden Single)
- Row 6 / Column 9 → 6 (Hidden Single)
- Row 2 / Column 4 → 8 (Hidden Single)
- Row 4 / Column 7 → 4 (Hidden Single)
- Row 7 / Column 2 → 4 (Hidden Single)
- Row 3 / Column 8 → 1 (Hidden Single)
- Row 4 / Column 9 → 5 (Hidden Single)
- Row 2 / Column 8 → 2 (Hidden Single)
- Row 5 / Column 6 → 2 (Hidden Single)
- Row 3 / Column 5 → 2 (Hidden Single)
- Locked Pair: 3,5 in r23c1 => r1c13,r3c3,r9c1<>5, r79c1<>3
- Row 1 / Column 1 → 1 (Naked Single)
- Locked Candidates Type 1 (Pointing): 9 in b1 => r6c3<>9
- Locked Candidates Type 1 (Pointing): 3 in b5 => r78c6<>3
- Locked Pair: 1,5 in r8c46 => r7c6,r8c239,r9c4<>1, r8c3,r9c4<>5
- Row 8 / Column 2 → 3 (Naked Single)
- Row 9 / Column 3 → 5 (Hidden Single)
- Row 9 / Column 9 → 2 (Hidden Single)
- Row 8 / Column 9 → 8 (Naked Single)
- Row 1 / Column 9 → 9 (Naked Single)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 1 / Column 3 → 4 (Naked Single)
- Row 1 / Column 5 → 6 (Naked Single)
- Row 3 / Column 9 → 3 (Naked Single)
- Row 7 / Column 9 → 1 (Full House)
- Row 3 / Column 3 → 9 (Naked Single)
- Row 1 / Column 6 → 5 (Naked Single)
- Row 1 / Column 7 → 8 (Full House)
- Row 5 / Column 5 → 9 (Naked Single)
- Row 5 / Column 4 → 6 (Full House)
- Row 2 / Column 7 → 5 (Naked Single)
- Row 3 / Column 7 → 6 (Full House)
- Row 3 / Column 1 → 5 (Naked Single)
- Row 3 / Column 4 → 4 (Full House)
- Row 2 / Column 6 → 9 (Full House)
- Row 2 / Column 1 → 3 (Full House)
- Row 7 / Column 3 → 8 (Naked Single)
- Row 6 / Column 3 → 1 (Full House)
- Row 8 / Column 6 → 1 (Naked Single)
- Row 8 / Column 4 → 5 (Full House)
- Row 7 / Column 6 → 6 (Naked Single)
- Row 6 / Column 4 → 7 (Naked Single)
- Row 4 / Column 6 → 3 (Naked Single)
- Row 6 / Column 6 → 4 (Full House)
- Row 4 / Column 4 → 1 (Full House)
- Row 9 / Column 4 → 9 (Full House)
- Row 7 / Column 1 → 7 (Naked Single)
- Row 6 / Column 1 → 8 (Naked Single)
- Row 9 / Column 1 → 6 (Full House)
- Row 9 / Column 2 → 1 (Full House)
- Row 6 / Column 2 → 9 (Naked Single)
- Row 4 / Column 2 → 7 (Full House)
- Row 4 / Column 8 → 9 (Full House)
- Row 6 / Column 8 → 3 (Full House)
- Row 9 / Column 7 → 3 (Naked Single)
- Row 7 / Column 7 → 9 (Full House)
- Row 7 / Column 5 → 3 (Full House)
- Row 9 / Column 5 → 7 (Full House)
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