Solution for Evil Sudoku #1443271698542
8
7
4
8
7
1
7
1
3
2
1
6
2
7
9
5
3
2
7
9
7
3
1
2
5
1
1
8
6
This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Pair, undefined, Swordfish, Naked Single, Empty Rectangle, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 4 / Column 6 → 2 (Hidden Single)
- Row 1 / Column 4 → 2 (Hidden Single)
- Row 6 / Column 4 → 1 (Hidden Single)
- Row 5 / Column 7 → 1 (Hidden Single)
- Row 3 / Column 7 → 8 (Hidden Single)
- Row 5 / Column 2 → 7 (Hidden Single)
- Row 8 / Column 8 → 3 (Hidden Single)
- Row 2 / Column 3 → 1 (Hidden Single)
- Row 9 / Column 6 → 7 (Hidden Single)
- Row 7 / Column 7 → 7 (Hidden Single)
- Row 3 / Column 4 → 5 (Hidden Single)
- Row 2 / Column 2 → 2 (Hidden Single)
- Row 9 / Column 3 → 2 (Hidden Single)
- Row 9 / Column 5 → 8 (Hidden Single)
- Row 5 / Column 6 → 8 (Hidden Single)
- Row 7 / Column 4 → 3 (Hidden Single)
- Row 8 / Column 9 → 2 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b4 => r6c8<>9
- Locked Candidates Type 1 (Pointing): 3 in b5 => r1c5<>3
- Locked Candidates Type 1 (Pointing): 6 in b6 => r2c8<>6
- Naked Pair: 4,5 in r57c3 => r6c3<>4
- X-Wing: 5 c27 r14 => r1c1,r4c89<>5
- Swordfish: 6 r237 c169 => r1c16,r8c1<>6
- Row 1 / Column 1 → 9 (Naked Single)
- Row 3 / Column 3 → 3 (Naked Single)
- Row 6 / Column 3 → 9 (Naked Single)
- Row 1 / Column 6 → 3 (Hidden Single)
- Naked Pair: 4,8 in r68c1 => r7c1<>4
- Empty Rectangle: 4 in b8 (r57c3) => r5c4<>4
- Row 5 / Column 4 → 6 (Naked Single)
- Row 6 / Column 8 → 6 (Hidden Single)
- Row 1 / Column 5 → 6 (Hidden Single)
- Row 1 / Column 2 → 5 (Naked Single)
- Row 1 / Column 7 → 4 (Full House)
- Row 2 / Column 1 → 6 (Full House)
- Row 3 / Column 6 → 9 (Naked Single)
- Row 2 / Column 6 → 4 (Full House)
- Row 3 / Column 9 → 6 (Full House)
- Row 7 / Column 6 → 6 (Full House)
- Row 8 / Column 7 → 9 (Naked Single)
- Row 4 / Column 7 → 5 (Full House)
- Row 7 / Column 1 → 5 (Naked Single)
- Row 7 / Column 3 → 4 (Full House)
- Row 5 / Column 3 → 5 (Full House)
- Row 5 / Column 8 → 4 (Full House)
- Row 8 / Column 4 → 4 (Naked Single)
- Row 9 / Column 4 → 9 (Full House)
- Row 8 / Column 1 → 8 (Naked Single)
- Row 6 / Column 1 → 4 (Full House)
- Row 8 / Column 2 → 6 (Full House)
- Row 4 / Column 9 → 9 (Naked Single)
- Row 4 / Column 8 → 8 (Full House)
- Row 9 / Column 8 → 5 (Naked Single)
- Row 2 / Column 8 → 9 (Full House)
- Row 2 / Column 9 → 5 (Full House)
- Row 9 / Column 9 → 4 (Full House)
- Row 6 / Column 5 → 3 (Naked Single)
- Row 4 / Column 5 → 4 (Full House)
- Row 4 / Column 2 → 3 (Full House)
- Row 6 / Column 2 → 8 (Full House)
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