Solution for Evil Sudoku #4263157482995
8
2
7
4
1
9
5
6
3
3
9
1
6
5
2
4
7
8
5
6
4
8
3
7
9
1
2
7
4
8
1
3
2
6
9
5
2
1
5
9
6
4
7
8
3
3
9
6
7
8
5
4
2
1
2
7
1
3
5
4
9
8
6
5
3
9
8
2
6
1
4
7
6
4
8
1
7
9
2
5
3
This Sudoku Puzzle has 62 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 → 5 (Naked Single)
- Row 6 / Column 6 → 3 (Naked Single)
- Row 4 / Column 4 → 2 (Naked Single)
- Row 6 / Column 4 → 7 (Naked Single)
- Row 5 / Column 5 → 6 (Full House)
- Row 3 / Column 9 → 2 (Hidden Single)
- Row 5 / Column 9 → 5 (Hidden Single)
- Row 7 / Column 4 → 5 (Hidden Single)
- Row 5 / Column 3 → 2 (Hidden Single)
- Locked Pair: 7,8 in r5c78 => r4c8,r5c12<>8
- Locked Triple: 3,4,5 in r8c123 => r8c78,r9c2<>4, r79c1,r8c8,r9c2<>3
- Locked Candidates Type 1 (Pointing): 9 in b2 => r1c13<>9
- Locked Candidates Type 1 (Pointing): 3 in b3 => r2c23<>3
- Locked Candidates Type 1 (Pointing): 4 in b3 => r1c5<>4
- Locked Candidates Type 1 (Pointing): 6 in b8 => r13c6<>6
- Row 3 / Column 6 → 8 (Naked Single)
- Row 1 / Column 8 → 6 (Hidden Single)
- Row 8 / Column 8 → 7 (Naked Single)
- Row 5 / Column 8 → 8 (Naked Single)
- Row 2 / Column 8 → 3 (Naked Single)
- Row 5 / Column 7 → 7 (Naked Single)
- Row 2 / Column 7 → 8 (Naked Single)
- Row 2 / Column 9 → 7 (Naked Single)
- Row 1 / Column 9 → 4 (Full House)
- Row 2 / Column 3 → 9 (Naked Single)
- Locked Candidates Type 1 (Pointing): 9 in b4 => r9c2<>9
- Row 9 / Column 2 → 8 (Naked Single)
- Row 9 / Column 9 → 3 (Naked Single)
- Row 7 / Column 9 → 8 (Full House)
- Row 4 / Column 3 → 8 (Hidden Single)
- Row 1 / Column 3 → 7 (Naked Single)
- Row 1 / Column 5 → 9 (Naked Single)
- Row 3 / Column 3 → 3 (Naked Single)
- Row 8 / Column 3 → 4 (Full House)
- Row 1 / Column 6 → 1 (Naked Single)
- Row 1 / Column 1 → 8 (Full House)
- Row 9 / Column 5 → 4 (Naked Single)
- Row 3 / Column 1 → 5 (Naked Single)
- Row 2 / Column 4 → 6 (Naked Single)
- Row 2 / Column 2 → 1 (Full House)
- Row 3 / Column 2 → 6 (Full House)
- Row 8 / Column 6 → 6 (Naked Single)
- Row 7 / Column 6 → 9 (Full House)
- Row 3 / Column 5 → 7 (Naked Single)
- Row 7 / Column 5 → 3 (Full House)
- Row 9 / Column 4 → 1 (Full House)
- Row 3 / Column 4 → 4 (Full House)
- Row 8 / Column 1 → 3 (Naked Single)
- Row 5 / Column 2 → 3 (Naked Single)
- Row 5 / Column 1 → 1 (Full House)
- Row 8 / Column 7 → 1 (Naked Single)
- Row 8 / Column 2 → 5 (Full House)
- Row 7 / Column 1 → 2 (Naked Single)
- Row 9 / Column 1 → 9 (Full House)
- Row 9 / Column 7 → 2 (Full House)
- Row 7 / Column 8 → 4 (Naked Single)
- Row 7 / Column 7 → 6 (Full House)
- Row 6 / Column 7 → 4 (Full House)
- Row 4 / Column 8 → 9 (Naked Single)
- Row 4 / Column 2 → 4 (Full House)
- Row 6 / Column 2 → 9 (Full House)
- Row 6 / Column 8 → 2 (Full House)
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