Solution for Evil Sudoku #1172495863175
6
5
2
1
4
7
2
2
9
6
8
6
3
9
3
8
4
1
9
1
8
7
2
5
6
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 4 / Column 9 → 5 (Naked Single)
- Row 4 / Column 8 → 7 (Naked Single)
- Row 4 / Column 3 → 1 (Naked Single)
- Row 5 / Column 3 → 7 (Naked Single)
- Row 5 / Column 1 → 4 (Hidden Single)
- Row 5 / Column 4 → 5 (Naked Single)
- Row 6 / Column 4 → 7 (Naked Single)
- Row 6 / Column 6 → 2 (Naked Single)
- Row 5 / Column 6 → 1 (Naked Single)
- Row 6 / Column 7 → 6 (Naked Single)
- Locked Candidates Type 1 (Pointing): 7 in b1 => r89c2<>7
- Locked Candidates Type 1 (Pointing): 9 in b1 => r2c4789<>9
- Row 1 / Column 4 → 9 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 1 in b9 => r12c8<>1
- Row 1 / Column 8 → 3 (Naked Single)
- Row 7 / Column 8 → 1 (Naked Single)
- Row 9 / Column 8 → 9 (Naked Single)
- Row 8 / Column 7 → 4 (Naked Single)
- Row 8 / Column 9 → 3 (Full House)
- Row 2 / Column 7 → 1 (Naked Single)
- Row 9 / Column 2 → 1 (Hidden Single)
- Row 1 / Column 5 → 1 (Hidden Single)
- Row 7 / Column 2 → 4 (Hidden Single)
- Naked Pair: 3,5 in r67c1 => r29c1<>3, r8c1<>5
- Naked Pair: 4,8 in r14c6 => r389c6<>8, r9c6<>4
- Row 9 / Column 6 → 3 (Naked Single)
- Row 7 / Column 4 → 6 (Naked Single)
- Row 9 / Column 3 → 2 (Naked Single)
- Row 8 / Column 6 → 5 (Naked Single)
- Row 7 / Column 3 → 3 (Naked Single)
- Row 3 / Column 6 → 6 (Naked Single)
- Row 7 / Column 5 → 2 (Naked Single)
- Row 7 / Column 1 → 5 (Full House)
- Row 8 / Column 2 → 8 (Naked Single)
- Row 2 / Column 3 → 9 (Naked Single)
- Row 8 / Column 3 → 6 (Full House)
- Row 3 / Column 8 → 5 (Naked Single)
- Row 2 / Column 8 → 6 (Full House)
- Row 6 / Column 1 → 3 (Naked Single)
- Row 6 / Column 2 → 5 (Full House)
- Row 1 / Column 2 → 7 (Naked Single)
- Row 3 / Column 2 → 3 (Full House)
- Row 2 / Column 1 → 8 (Full House)
- Row 8 / Column 5 → 7 (Naked Single)
- Row 8 / Column 1 → 9 (Full House)
- Row 9 / Column 1 → 7 (Full House)
- Row 3 / Column 5 → 8 (Naked Single)
- Row 1 / Column 7 → 2 (Naked Single)
- Row 2 / Column 9 → 4 (Naked Single)
- Row 1 / Column 6 → 4 (Naked Single)
- Row 1 / Column 9 → 8 (Full House)
- Row 4 / Column 6 → 8 (Full House)
- Row 4 / Column 4 → 4 (Full House)
- Row 3 / Column 9 → 9 (Naked Single)
- Row 3 / Column 7 → 7 (Full House)
- Row 5 / Column 7 → 9 (Full House)
- Row 5 / Column 9 → 2 (Full House)
- Row 9 / Column 5 → 4 (Naked Single)
- Row 2 / Column 5 → 5 (Full House)
- Row 2 / Column 4 → 3 (Full House)
- Row 9 / Column 4 → 8 (Full House)
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