Solution for Evil Sudoku #1427956138493
1
7
3
5
2
6
8
7
1
6
4
9
5
2
8
1
9
8
1
7
5
9
1
5
This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Pair techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 4 / Column 4 → 8 (Naked Single)
- Row 4 / Column 5 → 3 (Naked Single)
- Row 6 / Column 4 → 2 (Naked Single)
- Row 6 / Column 6 → 5 (Full House)
- Row 4 / Column 1 → 1 (Hidden Single)
- Row 2 / Column 8 → 5 (Hidden Single)
- Row 1 / Column 1 → 5 (Hidden Single)
- Row 7 / Column 5 → 5 (Hidden Single)
- Row 8 / Column 8 → 1 (Hidden Single)
- Row 5 / Column 2 → 5 (Hidden Single)
- Row 9 / Column 8 → 8 (Hidden Single)
- Row 8 / Column 7 → 9 (Hidden Single)
- Row 6 / Column 2 → 7 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 6 in b2 => r789c6<>6
- Locked Pair: 2,3 in r79c6 => r238c6,r8c5<>2, r8c6<>3
- Row 8 / Column 6 → 8 (Naked Single)
- Row 1 / Column 6 → 9 (Naked Single)
- Locked Candidates Type 1 (Pointing): 6 in b6 => r7c8<>6
- Locked Candidates Type 1 (Pointing): 9 in b6 => r3c8<>9
- Locked Pair: 3,4 in r3c78 => r1c7,r3c129<>3, r1c7,r23c9,r3c125<>4
- Row 1 / Column 7 → 7 (Naked Single)
- Row 1 / Column 4 → 4 (Naked Single)
- Row 5 / Column 7 → 3 (Naked Single)
- Row 1 / Column 5 → 8 (Naked Single)
- Row 1 / Column 3 → 3 (Full House)
- Row 3 / Column 7 → 4 (Naked Single)
- Row 5 / Column 1 → 2 (Naked Single)
- Row 6 / Column 9 → 4 (Naked Single)
- Row 3 / Column 5 → 2 (Naked Single)
- Row 3 / Column 8 → 3 (Naked Single)
- Row 5 / Column 3 → 9 (Naked Single)
- Row 5 / Column 8 → 7 (Full House)
- Row 6 / Column 8 → 6 (Naked Single)
- Row 4 / Column 8 → 9 (Full House)
- Row 7 / Column 8 → 4 (Full House)
- Row 9 / Column 9 → 3 (Naked Single)
- Row 2 / Column 5 → 7 (Naked Single)
- Row 8 / Column 5 → 4 (Full House)
- Row 6 / Column 3 → 8 (Naked Single)
- Row 6 / Column 1 → 3 (Full House)
- Row 7 / Column 9 → 7 (Naked Single)
- Row 9 / Column 6 → 2 (Naked Single)
- Row 8 / Column 1 → 6 (Naked Single)
- Row 7 / Column 4 → 6 (Naked Single)
- Row 8 / Column 4 → 7 (Full House)
- Row 7 / Column 6 → 3 (Full House)
- Row 7 / Column 7 → 2 (Full House)
- Row 9 / Column 7 → 6 (Full House)
- Row 9 / Column 2 → 4 (Full House)
- Row 2 / Column 1 → 4 (Naked Single)
- Row 3 / Column 1 → 8 (Full House)
- Row 8 / Column 3 → 2 (Naked Single)
- Row 8 / Column 2 → 3 (Full House)
- Row 4 / Column 2 → 6 (Naked Single)
- Row 4 / Column 3 → 4 (Full House)
- Row 2 / Column 3 → 6 (Full House)
- Row 3 / Column 2 → 9 (Naked Single)
- Row 2 / Column 2 → 2 (Full House)
- Row 2 / Column 6 → 1 (Naked Single)
- Row 2 / Column 9 → 9 (Full House)
- Row 3 / Column 9 → 1 (Full House)
- Row 3 / Column 6 → 6 (Full House)
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