Solution for Evil Sudoku #3118345796295
2
4
3
1
8
3
2
4
5
6
9
7
9
3
2
6
4
8
1
3
5
4
1
5
6
7
This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Pair, Locked Triple, Locked Candidates Type 1 (Pointing) techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 4 / Column 6 → 4 (Naked Single)
- Row 4 / Column 4 → 8 (Naked Single)
- Row 6 / Column 6 → 6 (Naked Single)
- Row 6 / Column 4 → 5 (Naked Single)
- Row 5 / Column 5 → 1 (Full House)
- Row 1 / Column 5 → 4 (Hidden Single)
- Row 1 / Column 7 → 6 (Hidden Single)
- Row 6 / Column 3 → 4 (Hidden Single)
- Row 7 / Column 5 → 6 (Hidden Single)
- Locked Pair: 5,9 in r23c5 => r2c6,r89c5<>9
- Locked Triple: 4,7,8 in r789c2 => r23c2,r8c1<>7, r2c2,r89c1,r9c3<>8
- Locked Candidates Type 1 (Pointing): 7 in b3 => r5c9<>7
- Locked Candidates Type 1 (Pointing): 8 in b3 => r78c8<>8
- Locked Candidates Type 1 (Pointing): 1 in b4 => r4c79<>1
- Row 4 / Column 7 → 9 (Naked Single)
- Row 2 / Column 9 → 1 (Hidden Single)
- Row 2 / Column 2 → 5 (Naked Single)
- Row 2 / Column 5 → 9 (Naked Single)
- Row 2 / Column 8 → 8 (Naked Single)
- Row 3 / Column 5 → 5 (Naked Single)
- Row 3 / Column 8 → 9 (Naked Single)
- Row 1 / Column 8 → 5 (Naked Single)
- Row 1 / Column 9 → 7 (Full House)
- Row 7 / Column 8 → 2 (Naked Single)
- Locked Candidates Type 1 (Pointing): 2 in b8 => r8c1<>2
- Row 8 / Column 1 → 9 (Naked Single)
- Row 1 / Column 1 → 8 (Naked Single)
- Row 1 / Column 3 → 9 (Full House)
- Row 7 / Column 6 → 9 (Hidden Single)
- Row 7 / Column 9 → 5 (Naked Single)
- Row 5 / Column 9 → 2 (Naked Single)
- Row 7 / Column 7 → 8 (Naked Single)
- Row 7 / Column 2 → 7 (Full House)
- Row 4 / Column 9 → 3 (Naked Single)
- Row 9 / Column 9 → 9 (Full House)
- Row 5 / Column 1 → 7 (Naked Single)
- Row 9 / Column 7 → 4 (Naked Single)
- Row 4 / Column 2 → 1 (Naked Single)
- Row 4 / Column 3 → 2 (Full House)
- Row 6 / Column 8 → 1 (Naked Single)
- Row 8 / Column 8 → 3 (Full House)
- Row 8 / Column 7 → 1 (Full House)
- Row 5 / Column 3 → 8 (Naked Single)
- Row 5 / Column 7 → 5 (Full House)
- Row 6 / Column 1 → 3 (Full House)
- Row 6 / Column 7 → 7 (Full House)
- Row 9 / Column 2 → 8 (Naked Single)
- Row 3 / Column 2 → 3 (Naked Single)
- Row 8 / Column 2 → 4 (Full House)
- Row 9 / Column 3 → 6 (Naked Single)
- Row 9 / Column 1 → 2 (Full House)
- Row 3 / Column 1 → 6 (Full House)
- Row 9 / Column 5 → 3 (Full House)
- Row 8 / Column 5 → 8 (Full House)
- Row 2 / Column 3 → 7 (Naked Single)
- Row 3 / Column 3 → 1 (Full House)
- Row 3 / Column 4 → 7 (Full House)
- Row 2 / Column 6 → 2 (Naked Single)
- Row 2 / Column 4 → 6 (Full House)
- Row 8 / Column 4 → 2 (Full House)
- Row 8 / Column 6 → 7 (Full House)
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