Solution for Evil Sudoku #3282517469343
6
1
7
4
5
3
4
6
5
8
1
9
4
1
6
2
3
6
7
1
7
3
2
9
6
7
8
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 4 / Column 2 → 7 (Naked Single)
- Row 4 / Column 3 → 6 (Naked Single)
- Row 2 / Column 5 → 6 (Hidden Single)
- Row 4 / Column 8 → 1 (Hidden Single)
- Row 6 / Column 5 → 3 (Hidden Single)
- Row 2 / Column 8 → 7 (Hidden Single)
- Row 1 / Column 6 → 1 (Hidden Single)
- Row 9 / Column 4 → 1 (Hidden Single)
- Row 6 / Column 7 → 8 (Hidden Single)
- Row 6 / Column 6 → 2 (Naked Single)
- Row 5 / Column 6 → 7 (Naked Single)
- Row 7 / Column 6 → 8 (Full House)
- Row 6 / Column 2 → 4 (Naked Single)
- Row 6 / Column 8 → 5 (Full House)
- Row 3 / Column 1 → 7 (Hidden Single)
- Row 7 / Column 5 → 7 (Hidden Single)
- Row 8 / Column 9 → 1 (Hidden Single)
- Row 5 / Column 4 → 5 (Hidden Single)
- Row 3 / Column 7 → 1 (Hidden Single)
- Row 3 / Column 3 → 4 (Hidden Single)
- Row 8 / Column 1 → 6 (Hidden Single)
- Row 7 / Column 9 → 6 (Hidden Single)
- Row 8 / Column 2 → 8 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 5 in b3 => r9c9<>5
- X-Wing: 2 c38 r17 => r1c159,r7c1<>2
- Row 3 / Column 5 → 2 (Hidden Single)
- X-Wing: 3 c38 r18 => r1c1<>3
- Naked Pair: 8,9 in r1c15 => r1c89<>9, r1c9<>8
- Row 1 / Column 9 → 5 (Naked Single)
- Row 3 / Column 2 → 5 (Hidden Single)
- Empty Rectangle: 9 in b3 (r29c2) => r9c9<>9
- XY-Wing: 3/4/2 in r18c8,r9c9 => r2c9,r7c8<>2
- Row 9 / Column 9 → 2 (Hidden Single)
- Row 1 / Column 8 → 2 (Hidden Single)
- Row 1 / Column 3 → 3 (Naked Single)
- Row 8 / Column 3 → 5 (Naked Single)
- Row 7 / Column 3 → 2 (Full House)
- Row 8 / Column 5 → 4 (Naked Single)
- Row 8 / Column 8 → 3 (Full House)
- Row 9 / Column 5 → 5 (Full House)
- Row 9 / Column 7 → 9 (Naked Single)
- Row 2 / Column 7 → 3 (Naked Single)
- Row 7 / Column 7 → 5 (Full House)
- Row 7 / Column 8 → 4 (Full House)
- Row 5 / Column 8 → 9 (Full House)
- Row 7 / Column 1 → 9 (Full House)
- Row 5 / Column 9 → 4 (Full House)
- Row 9 / Column 2 → 3 (Naked Single)
- Row 9 / Column 1 → 4 (Full House)
- Row 1 / Column 1 → 8 (Naked Single)
- Row 1 / Column 5 → 9 (Full House)
- Row 3 / Column 4 → 8 (Full House)
- Row 4 / Column 5 → 8 (Full House)
- Row 3 / Column 9 → 9 (Full House)
- Row 4 / Column 4 → 9 (Full House)
- Row 2 / Column 9 → 8 (Full House)
- Row 5 / Column 2 → 2 (Naked Single)
- Row 2 / Column 2 → 9 (Full House)
- Row 2 / Column 1 → 2 (Full House)
- Row 5 / Column 1 → 3 (Full House)
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