Solution for Evil Sudoku #1265978123495
7
4
8
3
2
6
9
8
9
6
5
2
1
4
9
7
6
8
9
4
7
3
7
5
1
3
This Sudoku Puzzle has 59 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 4 → 5 (Naked Single)
- Row 6 / Column 4 → 7 (Naked Single)
- Row 6 / Column 6 → 3 (Naked Single)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 5 / Column 5 → 6 (Full House)
- Row 5 / Column 1 → 7 (Hidden Single)
- Row 7 / Column 1 → 3 (Hidden Single)
- Row 3 / Column 6 → 7 (Hidden Single)
- Row 5 / Column 7 → 3 (Hidden Single)
- Locked Pair: 2,8 in r5c23 => r5c89,r6c2<>2
- Locked Triple: 1,5,7 in r2c789 => r1c8,r2c23<>1, r1c89,r2c2,r3c9<>5
- Locked Candidates Type 1 (Pointing): 6 in b2 => r79c4<>6
- Row 7 / Column 4 → 2 (Naked Single)
- Row 9 / Column 2 → 6 (Hidden Single)
- Row 2 / Column 2 → 8 (Naked Single)
- Row 5 / Column 2 → 2 (Naked Single)
- Row 5 / Column 3 → 8 (Naked Single)
- Row 8 / Column 2 → 5 (Naked Single)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 8 / Column 1 → 8 (Naked Single)
- Row 9 / Column 1 → 1 (Full House)
- Row 8 / Column 7 → 4 (Naked Single)
- Locked Candidates Type 1 (Pointing): 4 in b6 => r1c8<>4
- Row 1 / Column 8 → 2 (Naked Single)
- Row 1 / Column 1 → 5 (Naked Single)
- Row 3 / Column 1 → 2 (Full House)
- Row 9 / Column 9 → 2 (Hidden Single)
- Row 9 / Column 7 → 8 (Naked Single)
- Row 7 / Column 7 → 5 (Naked Single)
- Row 9 / Column 5 → 4 (Naked Single)
- Row 9 / Column 4 → 9 (Full House)
- Row 2 / Column 7 → 1 (Naked Single)
- Row 6 / Column 7 → 2 (Full House)
- Row 7 / Column 9 → 7 (Naked Single)
- Row 1 / Column 5 → 1 (Naked Single)
- Row 2 / Column 4 → 6 (Naked Single)
- Row 3 / Column 4 → 4 (Full House)
- Row 8 / Column 6 → 6 (Naked Single)
- Row 8 / Column 8 → 9 (Full House)
- Row 7 / Column 8 → 6 (Full House)
- Row 2 / Column 9 → 5 (Naked Single)
- Row 1 / Column 6 → 9 (Naked Single)
- Row 3 / Column 5 → 5 (Full House)
- Row 7 / Column 5 → 8 (Full House)
- Row 7 / Column 6 → 1 (Full House)
- Row 2 / Column 3 → 9 (Naked Single)
- Row 2 / Column 8 → 7 (Full House)
- Row 3 / Column 9 → 3 (Naked Single)
- Row 1 / Column 9 → 4 (Full House)
- Row 5 / Column 9 → 9 (Full House)
- Row 5 / Column 8 → 5 (Full House)
- Row 1 / Column 3 → 3 (Full House)
- Row 3 / Column 2 → 1 (Naked Single)
- Row 3 / Column 3 → 6 (Full House)
- Row 4 / Column 3 → 1 (Full House)
- Row 6 / Column 2 → 4 (Naked Single)
- Row 4 / Column 2 → 3 (Full House)
- Row 4 / Column 8 → 4 (Full House)
- Row 6 / Column 8 → 1 (Full House)
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