Solution for Evil Sudoku #3397268534195
3
5
6
4
2
9
8
1
7
8
2
9
5
7
1
3
4
6
4
7
1
8
6
3
2
5
9
7
9
5
1
6
8
2
4
3
4
1
8
2
9
3
6
5
7
6
3
2
7
4
5
1
9
8
6
3
1
9
7
2
5
8
4
7
8
5
1
3
4
9
6
2
9
2
4
5
8
6
3
1
7
This Sudoku Puzzle has 60 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 6 / Column 6 → 7 (Naked Single)
- Row 6 / Column 4 → 6 (Naked Single)
- Row 4 / Column 4 → 4 (Naked Single)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 5 / Column 5 → 9 (Full House)
- Row 9 / Column 3 → 4 (Hidden Single)
- Row 9 / Column 5 → 6 (Hidden Single)
- Row 4 / Column 7 → 6 (Hidden Single)
- Row 3 / Column 5 → 4 (Hidden Single)
- Locked Pair: 3,8 in r78c5 => r12c5,r8c4<>3
- Locked Triple: 5,6,7 in r123c8 => r2c9,r78c8<>5, r1c79,r2c9,r8c8<>7
- Locked Candidates Type 1 (Pointing): 1 in b4 => r13c1<>1
- Locked Candidates Type 1 (Pointing): 9 in b6 => r6c13<>9
- Row 6 / Column 3 → 3 (Naked Single)
- Row 8 / Column 1 → 9 (Hidden Single)
- Row 8 / Column 8 → 8 (Naked Single)
- Row 8 / Column 5 → 3 (Naked Single)
- Row 7 / Column 5 → 8 (Naked Single)
- Row 8 / Column 2 → 7 (Naked Single)
- Row 7 / Column 2 → 3 (Naked Single)
- Row 9 / Column 2 → 8 (Naked Single)
- Row 9 / Column 1 → 5 (Full House)
- Row 3 / Column 2 → 1 (Naked Single)
- Locked Candidates Type 1 (Pointing): 1 in b2 => r2c9<>1
- Row 2 / Column 9 → 3 (Naked Single)
- Row 9 / Column 9 → 7 (Naked Single)
- Row 9 / Column 7 → 3 (Full House)
- Row 1 / Column 1 → 3 (Hidden Single)
- Row 3 / Column 1 → 8 (Naked Single)
- Row 3 / Column 3 → 7 (Naked Single)
- Row 5 / Column 1 → 1 (Naked Single)
- Row 6 / Column 1 → 2 (Full House)
- Row 1 / Column 3 → 6 (Naked Single)
- Row 3 / Column 8 → 5 (Naked Single)
- Row 3 / Column 4 → 3 (Full House)
- Row 5 / Column 9 → 5 (Naked Single)
- Row 4 / Column 2 → 9 (Naked Single)
- Row 2 / Column 2 → 2 (Full House)
- Row 2 / Column 3 → 9 (Full House)
- Row 6 / Column 8 → 9 (Naked Single)
- Row 6 / Column 7 → 1 (Full House)
- Row 1 / Column 8 → 7 (Naked Single)
- Row 4 / Column 9 → 2 (Naked Single)
- Row 5 / Column 7 → 7 (Full House)
- Row 5 / Column 3 → 8 (Full House)
- Row 4 / Column 3 → 5 (Full House)
- Row 2 / Column 5 → 7 (Naked Single)
- Row 1 / Column 5 → 2 (Full House)
- Row 7 / Column 8 → 2 (Naked Single)
- Row 2 / Column 8 → 6 (Full House)
- Row 1 / Column 7 → 4 (Naked Single)
- Row 1 / Column 9 → 1 (Full House)
- Row 7 / Column 9 → 4 (Full House)
- Row 8 / Column 7 → 5 (Naked Single)
- Row 7 / Column 7 → 9 (Full House)
- Row 7 / Column 6 → 5 (Full House)
- Row 8 / Column 4 → 1 (Naked Single)
- Row 2 / Column 4 → 5 (Full House)
- Row 2 / Column 6 → 1 (Full House)
- Row 8 / Column 6 → 4 (Full House)
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