Solution for Evil Sudoku #2228597316493
8
9
5
6
3
5
3
9
5
3
7
4
8
3
6
9
2
8
3
9
1
6
2
7
This Sudoku Puzzle has 60 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 6 / Column 4 → 6 (Naked Single)
- Row 4 / Column 4 → 2 (Naked Single)
- Row 6 / Column 5 → 1 (Naked Single)
- Row 4 / Column 6 → 9 (Full House)
- Row 2 / Column 8 → 3 (Hidden Single)
- Row 3 / Column 5 → 9 (Hidden Single)
- Row 6 / Column 1 → 3 (Hidden Single)
- Row 9 / Column 1 → 9 (Hidden Single)
- Row 8 / Column 8 → 9 (Hidden Single)
- Row 2 / Column 7 → 5 (Hidden Single)
- Row 1 / Column 8 → 6 (Hidden Single)
- Row 5 / Column 2 → 9 (Hidden Single)
- Row 4 / Column 2 → 8 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 8 in b3 => r3c4<>8
- Locked Candidates Type 1 (Pointing): 5 in b6 => r7c8<>5
- Locked Pair: 1,4 in r7c78 => r7c129,r9c7<>1, r7c1259,r8c9,r9c7<>4
- Row 9 / Column 7 → 8 (Naked Single)
- Row 5 / Column 7 → 1 (Naked Single)
- Row 9 / Column 4 → 4 (Naked Single)
- Row 4 / Column 9 → 4 (Naked Single)
- Row 5 / Column 1 → 2 (Naked Single)
- Row 7 / Column 7 → 4 (Naked Single)
- Row 3 / Column 4 → 7 (Naked Single)
- Row 2 / Column 4 → 8 (Full House)
- Row 9 / Column 5 → 6 (Naked Single)
- Row 1 / Column 9 → 1 (Naked Single)
- Row 4 / Column 8 → 7 (Naked Single)
- Row 5 / Column 3 → 5 (Naked Single)
- Row 5 / Column 8 → 8 (Full House)
- Row 6 / Column 8 → 5 (Full House)
- Row 7 / Column 8 → 1 (Naked Single)
- Row 3 / Column 8 → 4 (Full House)
- Row 3 / Column 7 → 2 (Naked Single)
- Row 1 / Column 7 → 7 (Full House)
- Row 3 / Column 9 → 8 (Full House)
- Row 3 / Column 6 → 1 (Full House)
- Row 7 / Column 5 → 2 (Naked Single)
- Row 9 / Column 6 → 5 (Naked Single)
- Row 9 / Column 3 → 1 (Full House)
- Row 1 / Column 6 → 2 (Naked Single)
- Row 1 / Column 2 → 4 (Full House)
- Row 2 / Column 5 → 4 (Naked Single)
- Row 8 / Column 5 → 8 (Full House)
- Row 2 / Column 6 → 6 (Full House)
- Row 4 / Column 3 → 6 (Naked Single)
- Row 4 / Column 1 → 1 (Full House)
- Row 6 / Column 2 → 7 (Naked Single)
- Row 6 / Column 3 → 4 (Full House)
- Row 2 / Column 1 → 7 (Naked Single)
- Row 7 / Column 2 → 5 (Naked Single)
- Row 2 / Column 3 → 2 (Naked Single)
- Row 2 / Column 2 → 1 (Full House)
- Row 8 / Column 2 → 2 (Full House)
- Row 8 / Column 3 → 7 (Full House)
- Row 7 / Column 1 → 6 (Naked Single)
- Row 8 / Column 1 → 4 (Full House)
- Row 7 / Column 9 → 3 (Naked Single)
- Row 7 / Column 6 → 7 (Full House)
- Row 8 / Column 6 → 3 (Full House)
- Row 8 / Column 9 → 5 (Full House)
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