Solution for Evil Sudoku #2358716392475
5
4
8
1
3
9
6
7
2
3
7
2
4
5
6
9
8
1
6
1
9
7
8
2
3
4
5
2
6
3
7
9
5
8
1
4
5
1
8
6
2
4
7
9
3
9
7
4
1
3
8
2
5
6
4
2
7
3
8
1
9
5
6
8
3
9
2
6
5
1
4
7
5
6
1
4
9
7
8
2
3
This Sudoku Puzzle has 62 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 6 / Column 9 → 6 (Naked Single)
- Row 6 / Column 8 → 5 (Naked Single)
- Row 6 / Column 3 → 4 (Naked Single)
- Row 5 / Column 3 → 5 (Naked Single)
- Row 4 / Column 7 → 9 (Hidden Single)
- Row 5 / Column 1 → 7 (Hidden Single)
- Row 5 / Column 4 → 6 (Naked Single)
- Row 4 / Column 4 → 5 (Naked Single)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 5 / Column 6 → 4 (Naked Single)
- Locked Candidates Type 1 (Pointing): 4 in b3 => r89c8<>4
- Locked Candidates Type 1 (Pointing): 7 in b3 => r2c256<>7
- Locked Candidates Type 1 (Pointing): 1 in b7 => r8c4789<>1
- Row 9 / Column 4 → 1 (Hidden Single)
- Row 9 / Column 8 → 2 (Naked Single)
- Row 3 / Column 8 → 4 (Naked Single)
- Row 1 / Column 8 → 1 (Naked Single)
- Row 2 / Column 7 → 7 (Naked Single)
- Row 2 / Column 9 → 2 (Full House)
- Row 8 / Column 7 → 4 (Naked Single)
- Row 1 / Column 2 → 4 (Hidden Single)
- Row 9 / Column 5 → 4 (Hidden Single)
- Row 3 / Column 2 → 7 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 5 in b7 => r2c2<>5
- Naked Pair: 2,6 in r34c1 => r18c1<>2, r2c1<>6
- Naked Pair: 3,7 in r69c6 => r127c6<>3, r1c6<>7
- Row 1 / Column 6 → 2 (Naked Single)
- Row 1 / Column 3 → 8 (Naked Single)
- Row 3 / Column 4 → 9 (Naked Single)
- Row 2 / Column 6 → 6 (Naked Single)
- Row 3 / Column 3 → 2 (Naked Single)
- Row 2 / Column 2 → 3 (Naked Single)
- Row 3 / Column 5 → 8 (Naked Single)
- Row 3 / Column 1 → 6 (Full House)
- Row 7 / Column 6 → 9 (Naked Single)
- Row 8 / Column 3 → 1 (Naked Single)
- Row 2 / Column 3 → 9 (Full House)
- Row 1 / Column 1 → 5 (Naked Single)
- Row 2 / Column 1 → 1 (Full House)
- Row 2 / Column 5 → 5 (Full House)
- Row 9 / Column 2 → 5 (Naked Single)
- Row 4 / Column 1 → 2 (Naked Single)
- Row 8 / Column 1 → 3 (Full House)
- Row 7 / Column 2 → 2 (Full House)
- Row 4 / Column 2 → 6 (Full House)
- Row 7 / Column 8 → 6 (Naked Single)
- Row 8 / Column 8 → 9 (Full House)
- Row 9 / Column 7 → 8 (Naked Single)
- Row 8 / Column 9 → 7 (Naked Single)
- Row 7 / Column 5 → 3 (Naked Single)
- Row 5 / Column 7 → 1 (Naked Single)
- Row 5 / Column 9 → 8 (Full House)
- Row 7 / Column 7 → 5 (Full House)
- Row 7 / Column 9 → 1 (Full House)
- Row 9 / Column 9 → 3 (Full House)
- Row 9 / Column 6 → 7 (Full House)
- Row 6 / Column 6 → 3 (Full House)
- Row 6 / Column 4 → 7 (Full House)
- Row 8 / Column 4 → 2 (Naked Single)
- Row 8 / Column 5 → 6 (Full House)
- Row 1 / Column 5 → 7 (Full House)
- Row 1 / Column 4 → 3 (Full House)
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