Solution for Evil Sudoku #3316328749543
4
7
5
8
6
4
1
8
3
5
8
7
7
2
4
9
4
5
6
2
4
1
9
3
2
8
2
This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), undefined, Naked Pair, Empty Rectangle techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 7 / Column 4 → 4 (Naked Single)
- Row 8 / Column 4 → 8 (Naked Single)
- Row 2 / Column 2 → 8 (Hidden Single)
- Row 5 / Column 6 → 5 (Hidden Single)
- Row 3 / Column 6 → 1 (Hidden Single)
- Row 4 / Column 6 → 6 (Naked Single)
- Row 4 / Column 5 → 8 (Naked Single)
- Row 8 / Column 6 → 7 (Naked Single)
- Row 2 / Column 6 → 3 (Full House)
- Row 4 / Column 7 → 1 (Naked Single)
- Row 4 / Column 1 → 2 (Full House)
- Row 5 / Column 2 → 4 (Hidden Single)
- Row 6 / Column 9 → 2 (Hidden Single)
- Row 2 / Column 4 → 2 (Hidden Single)
- Row 5 / Column 7 → 8 (Hidden Single)
- Row 9 / Column 3 → 8 (Hidden Single)
- Row 6 / Column 5 → 3 (Hidden Single)
- Row 3 / Column 3 → 2 (Hidden Single)
- Row 1 / Column 8 → 2 (Hidden Single)
- Row 7 / Column 3 → 7 (Hidden Single)
- Row 1 / Column 7 → 4 (Hidden Single)
- Row 9 / Column 8 → 4 (Hidden Single)
- Row 8 / Column 8 → 1 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 3 in b1 => r1c9<>3
- X-Wing: 5 r27 c18 => r9c1<>5
- X-Wing: 6 r27 c17 => r159c1,r9c7<>6
- Row 5 / Column 3 → 6 (Hidden Single)
- Naked Pair: 1,9 in r59c1 => r1c1<>1, r12c1<>9
- Row 1 / Column 1 → 3 (Naked Single)
- Row 8 / Column 3 → 3 (Hidden Single)
- Empty Rectangle: 9 in b1 (r8c29) => r1c9<>9
- XY-Wing: 5/7/6 in r1c9,r2c18 => r1c2,r2c7<>6
- Row 1 / Column 9 → 6 (Hidden Single)
- Row 2 / Column 1 → 6 (Hidden Single)
- Row 7 / Column 1 → 5 (Naked Single)
- Row 7 / Column 8 → 3 (Naked Single)
- Row 7 / Column 7 → 6 (Full House)
- Row 5 / Column 8 → 7 (Naked Single)
- Row 2 / Column 8 → 5 (Full House)
- Row 5 / Column 9 → 3 (Full House)
- Row 3 / Column 9 → 9 (Naked Single)
- Row 2 / Column 7 → 7 (Naked Single)
- Row 3 / Column 7 → 3 (Full House)
- Row 3 / Column 2 → 5 (Full House)
- Row 2 / Column 5 → 9 (Full House)
- Row 9 / Column 7 → 9 (Full House)
- Row 1 / Column 5 → 7 (Full House)
- Row 8 / Column 9 → 5 (Naked Single)
- Row 9 / Column 9 → 7 (Full House)
- Row 9 / Column 1 → 1 (Naked Single)
- Row 5 / Column 1 → 9 (Full House)
- Row 5 / Column 4 → 1 (Full House)
- Row 6 / Column 3 → 1 (Full House)
- Row 6 / Column 4 → 9 (Full House)
- Row 1 / Column 3 → 9 (Full House)
- Row 1 / Column 2 → 1 (Full House)
- Row 8 / Column 5 → 6 (Naked Single)
- Row 8 / Column 2 → 9 (Full House)
- Row 9 / Column 2 → 6 (Full House)
- Row 9 / Column 5 → 5 (Full House)
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