Solution for Evil Sudoku #3173918462542
7
9
2
5
3
8
4
6
1
1
3
6
4
7
2
9
8
5
4
5
8
9
6
1
2
3
7
1
8
4
2
5
9
6
7
3
5
2
9
3
6
7
8
4
1
6
7
3
8
1
4
5
2
9
9
1
7
8
4
6
3
2
5
6
5
4
2
1
3
7
9
8
3
8
2
7
9
5
1
4
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 3 / Column 3 → 1 (Hidden Single)
- Row 4 / Column 1 → 1 (Hidden Single)
- Row 3 / Column 7 → 2 (Hidden Single)
- Row 8 / Column 5 → 1 (Hidden Single)
- Row 2 / Column 2 → 3 (Hidden Single)
- Row 6 / Column 9 → 9 (Hidden Single)
- Row 4 / Column 6 → 9 (Hidden Single)
- Row 3 / Column 5 → 8 (Hidden Single)
- Row 7 / Column 8 → 8 (Hidden Single)
- Row 6 / Column 4 → 8 (Hidden Single)
- Row 5 / Column 1 → 2 (Hidden Single)
- Row 6 / Column 7 → 5 (Hidden Single)
- Row 4 / Column 5 → 2 (Hidden Single)
- Row 7 / Column 1 → 9 (Hidden Single)
- Row 8 / Column 8 → 9 (Hidden Single)
- Row 6 / Column 3 → 3 (Hidden Single)
- Row 1 / Column 2 → 9 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 4 in b2 => r2c8<>4
- Locked Candidates Type 1 (Pointing): 3 in b5 => r5c9<>3
- Locked Candidates Type 1 (Pointing): 6 in b8 => r2c4<>6
- Naked Pair: 5,7 in r7c35 => r7c4<>7
- X-Wing: 5 r38 c69 => r12c6,r9c9<>5
- Swordfish: 4 c378 r149 => r49c9,r9c2<>4
- Row 9 / Column 9 → 6 (Naked Single)
- Row 7 / Column 7 → 3 (Naked Single)
- Row 7 / Column 4 → 6 (Naked Single)
- Row 4 / Column 9 → 3 (Hidden Single)
- Naked Pair: 2,7 in r9c24 => r9c3<>7
- Empty Rectangle: 7 in b4 (r7c35) => r6c5<>7
- Row 6 / Column 5 → 4 (Naked Single)
- Row 2 / Column 4 → 4 (Hidden Single)
- Row 5 / Column 9 → 4 (Hidden Single)
- Row 4 / Column 7 → 6 (Naked Single)
- Row 1 / Column 7 → 4 (Full House)
- Row 4 / Column 8 → 7 (Full House)
- Row 4 / Column 3 → 4 (Full House)
- Row 8 / Column 9 → 5 (Naked Single)
- Row 3 / Column 9 → 7 (Full House)
- Row 9 / Column 8 → 4 (Full House)
- Row 9 / Column 3 → 5 (Naked Single)
- Row 7 / Column 3 → 7 (Full House)
- Row 7 / Column 5 → 5 (Full House)
- Row 2 / Column 5 → 7 (Full House)
- Row 3 / Column 2 → 6 (Naked Single)
- Row 3 / Column 6 → 5 (Full House)
- Row 9 / Column 2 → 2 (Naked Single)
- Row 8 / Column 2 → 4 (Full House)
- Row 6 / Column 2 → 7 (Full House)
- Row 9 / Column 4 → 7 (Full House)
- Row 6 / Column 1 → 6 (Full House)
- Row 1 / Column 6 → 6 (Naked Single)
- Row 2 / Column 6 → 2 (Full House)
- Row 2 / Column 1 → 5 (Naked Single)
- Row 1 / Column 1 → 7 (Full House)
- Row 1 / Column 8 → 5 (Full House)
- Row 2 / Column 8 → 6 (Full House)
- Row 5 / Column 4 → 3 (Naked Single)
- Row 5 / Column 6 → 7 (Full House)
- Row 8 / Column 6 → 3 (Full House)
- Row 8 / Column 4 → 2 (Full House)
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