Solution for Evil Sudoku #2287531469275
6
2
7
1
5
7
3
6
4
7
8
6
9
3
2
3
9
4
5
2
4
1
7
8
6
This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Full House, Naked Pair techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 9 / Column 4 → 1 (Naked Single)
- Row 8 / Column 4 → 8 (Naked Single)
- Row 3 / Column 4 → 2 (Naked Single)
- Row 3 / Column 5 → 8 (Naked Single)
- Row 1 / Column 5 → 5 (Hidden Single)
- Row 4 / Column 5 → 1 (Naked Single)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 6 / Column 6 → 7 (Naked Single)
- Row 6 / Column 5 → 2 (Naked Single)
- Row 7 / Column 6 → 6 (Naked Single)
- Locked Candidates Type 1 (Pointing): 3 in b1 => r4789c2<>3
- Row 4 / Column 1 → 3 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 8 in b1 => r2c89<>8
- Locked Candidates Type 1 (Pointing): 2 in b9 => r8c12<>2
- Row 8 / Column 1 → 9 (Naked Single)
- Row 8 / Column 7 → 2 (Naked Single)
- Row 8 / Column 9 → 3 (Naked Single)
- Row 7 / Column 8 → 5 (Naked Single)
- Row 9 / Column 8 → 9 (Full House)
- Row 7 / Column 2 → 2 (Naked Single)
- Row 2 / Column 9 → 2 (Hidden Single)
- Row 5 / Column 1 → 2 (Hidden Single)
- Row 2 / Column 7 → 5 (Hidden Single)
- Naked Pair: 1,9 in r1c67 => r1c29<>9, r1c8<>1
- Naked Pair: 4,5 in r6c14 => r6c389<>4, r6c9<>5
- Row 6 / Column 9 → 9 (Naked Single)
- Row 3 / Column 9 → 7 (Naked Single)
- Row 4 / Column 7 → 6 (Naked Single)
- Row 3 / Column 7 → 9 (Naked Single)
- Row 6 / Column 8 → 1 (Naked Single)
- Row 1 / Column 7 → 1 (Naked Single)
- Row 5 / Column 7 → 7 (Full House)
- Row 3 / Column 2 → 3 (Naked Single)
- Row 3 / Column 8 → 6 (Full House)
- Row 2 / Column 8 → 4 (Naked Single)
- Row 6 / Column 3 → 6 (Naked Single)
- Row 1 / Column 6 → 9 (Naked Single)
- Row 2 / Column 6 → 1 (Full House)
- Row 1 / Column 2 → 4 (Naked Single)
- Row 1 / Column 9 → 8 (Naked Single)
- Row 1 / Column 8 → 3 (Full House)
- Row 5 / Column 8 → 8 (Full House)
- Row 2 / Column 1 → 8 (Naked Single)
- Row 2 / Column 3 → 9 (Full House)
- Row 8 / Column 3 → 1 (Naked Single)
- Row 8 / Column 2 → 6 (Full House)
- Row 9 / Column 2 → 5 (Naked Single)
- Row 7 / Column 1 → 7 (Naked Single)
- Row 5 / Column 3 → 4 (Naked Single)
- Row 4 / Column 2 → 9 (Naked Single)
- Row 5 / Column 2 → 1 (Full House)
- Row 5 / Column 9 → 5 (Full House)
- Row 6 / Column 1 → 5 (Full House)
- Row 9 / Column 1 → 4 (Full House)
- Row 4 / Column 9 → 4 (Full House)
- Row 6 / Column 4 → 4 (Full House)
- Row 4 / Column 4 → 5 (Full House)
- Row 7 / Column 5 → 3 (Naked Single)
- Row 7 / Column 3 → 8 (Full House)
- Row 9 / Column 3 → 3 (Full House)
- Row 9 / Column 5 → 7 (Full House)
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