Solution for Evil Sudoku #3221475896375
9
6
2
7
1
3
5
4
8
3
1
5
4
8
2
9
7
6
7
4
8
5
9
6
2
3
1
6
5
7
4
2
1
8
3
9
1
3
8
7
6
9
2
5
4
9
2
4
8
5
3
1
6
7
1
9
6
3
8
4
2
7
5
8
2
3
5
9
7
6
4
1
4
7
5
6
1
2
3
8
9
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 1 / Column 6 → 5 (Naked Single)
- Row 2 / Column 6 → 2 (Naked Single)
- Row 7 / Column 6 → 3 (Naked Single)
- Row 7 / Column 5 → 2 (Naked Single)
- Row 3 / Column 4 → 9 (Hidden Single)
- Row 9 / Column 5 → 4 (Hidden Single)
- Row 6 / Column 5 → 5 (Naked Single)
- Row 4 / Column 4 → 1 (Naked Single)
- Row 6 / Column 4 → 2 (Naked Single)
- Row 4 / Column 5 → 3 (Naked Single)
- Locked Candidates Type 1 (Pointing): 3 in b1 => r2c89<>3
- Locked Candidates Type 1 (Pointing): 4 in b1 => r458c2<>4
- Locked Candidates Type 1 (Pointing): 2 in b9 => r8c12<>2
- Locked Candidates Type 1 (Pointing): 7 in b9 => r1236c8<>7
- Row 6 / Column 9 → 7 (Hidden Single)
- Row 2 / Column 9 → 6 (Naked Single)
- Row 2 / Column 3 → 3 (Naked Single)
- Row 2 / Column 1 → 7 (Naked Single)
- Row 3 / Column 2 → 4 (Naked Single)
- Row 1 / Column 2 → 6 (Full House)
- Row 3 / Column 8 → 3 (Naked Single)
- Row 8 / Column 1 → 3 (Hidden Single)
- Row 5 / Column 9 → 3 (Hidden Single)
- Row 8 / Column 3 → 4 (Hidden Single)
- Naked Pair: 4,8 in r4c69 => r4c1<>4, r4c127<>8
- Row 4 / Column 1 → 6 (Naked Single)
- Row 6 / Column 3 → 9 (Naked Single)
- Row 7 / Column 1 → 1 (Naked Single)
- Row 4 / Column 2 → 5 (Naked Single)
- Row 7 / Column 3 → 6 (Naked Single)
- Row 4 / Column 7 → 9 (Naked Single)
- Row 5 / Column 3 → 1 (Naked Single)
- Row 9 / Column 3 → 5 (Full House)
- Row 8 / Column 2 → 8 (Naked Single)
- Row 7 / Column 8 → 7 (Naked Single)
- Row 7 / Column 2 → 9 (Full House)
- Row 2 / Column 7 → 5 (Naked Single)
- Row 2 / Column 8 → 9 (Full House)
- Row 9 / Column 4 → 6 (Naked Single)
- Row 8 / Column 4 → 5 (Full House)
- Row 5 / Column 2 → 2 (Naked Single)
- Row 9 / Column 2 → 7 (Full House)
- Row 9 / Column 1 → 2 (Full House)
- Row 9 / Column 8 → 8 (Full House)
- Row 8 / Column 9 → 2 (Naked Single)
- Row 8 / Column 7 → 6 (Full House)
- Row 5 / Column 7 → 8 (Naked Single)
- Row 1 / Column 8 → 4 (Naked Single)
- Row 3 / Column 9 → 1 (Naked Single)
- Row 1 / Column 7 → 7 (Naked Single)
- Row 3 / Column 7 → 2 (Full House)
- Row 1 / Column 9 → 8 (Full House)
- Row 4 / Column 9 → 4 (Full House)
- Row 3 / Column 5 → 7 (Full House)
- Row 1 / Column 5 → 1 (Full House)
- Row 4 / Column 6 → 8 (Full House)
- Row 6 / Column 6 → 4 (Full House)
- Row 5 / Column 1 → 4 (Naked Single)
- Row 5 / Column 8 → 5 (Full House)
- Row 6 / Column 8 → 6 (Full House)
- Row 6 / Column 1 → 8 (Full House)
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