Solution for Evil Sudoku #2315698234742
1
6
4
7
5
8
2
3
9
9
5
3
2
1
4
6
8
7
2
7
8
6
3
9
4
5
1
9
8
2
4
7
6
3
1
5
7
4
6
5
3
1
8
2
9
3
1
5
8
9
2
7
4
6
6
9
1
8
2
3
5
4
7
3
7
2
4
9
5
1
6
8
5
8
4
1
6
7
9
2
3
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 → 9 (Hidden Single)
- Row 4 / Column 1 → 9 (Hidden Single)
- Row 3 / Column 7 → 4 (Hidden Single)
- Row 8 / Column 5 → 9 (Hidden Single)
- Row 2 / Column 2 → 5 (Hidden Single)
- Row 6 / Column 9 → 6 (Hidden Single)
- Row 4 / Column 6 → 6 (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 → 4 (Hidden Single)
- Row 6 / Column 7 → 7 (Hidden Single)
- Row 4 / Column 5 → 4 (Hidden Single)
- Row 7 / Column 1 → 6 (Hidden Single)
- Row 8 / Column 8 → 6 (Hidden Single)
- Row 6 / Column 3 → 5 (Hidden Single)
- Row 1 / Column 2 → 6 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 2 in b2 => r2c8<>2
- Locked Candidates Type 1 (Pointing): 5 in b5 => r5c9<>5
- Locked Candidates Type 1 (Pointing): 3 in b8 => r2c4<>3
- Naked Pair: 1,7 in r7c35 => r7c4<>1
- X-Wing: 7 r38 c69 => r12c6,r9c9<>7
- Swordfish: 2 c378 r149 => r49c9,r9c2<>2
- Row 9 / Column 9 → 3 (Naked Single)
- Row 7 / Column 7 → 5 (Naked Single)
- Row 7 / Column 4 → 3 (Naked Single)
- Row 4 / Column 9 → 5 (Hidden Single)
- Naked Pair: 1,4 in r9c24 => r9c3<>1
- Empty Rectangle: 1 in b4 (r7c35) => r6c5<>1
- Row 6 / Column 5 → 2 (Naked Single)
- Row 2 / Column 4 → 2 (Hidden Single)
- Row 5 / Column 9 → 2 (Hidden Single)
- Row 4 / Column 7 → 3 (Naked Single)
- Row 1 / Column 7 → 2 (Full House)
- Row 4 / Column 8 → 1 (Full House)
- Row 4 / Column 3 → 2 (Full House)
- Row 8 / Column 9 → 7 (Naked Single)
- Row 3 / Column 9 → 1 (Full House)
- Row 9 / Column 8 → 2 (Full House)
- Row 9 / Column 3 → 7 (Naked Single)
- Row 7 / Column 3 → 1 (Full House)
- Row 7 / Column 5 → 7 (Full House)
- Row 2 / Column 5 → 1 (Full House)
- Row 3 / Column 2 → 3 (Naked Single)
- Row 3 / Column 6 → 7 (Full House)
- Row 9 / Column 2 → 4 (Naked Single)
- Row 8 / Column 2 → 2 (Full House)
- Row 6 / Column 2 → 1 (Full House)
- Row 9 / Column 4 → 1 (Full House)
- Row 6 / Column 1 → 3 (Full House)
- Row 1 / Column 6 → 3 (Naked Single)
- Row 2 / Column 6 → 4 (Full House)
- Row 2 / Column 1 → 7 (Naked Single)
- Row 1 / Column 1 → 1 (Full House)
- Row 1 / Column 8 → 7 (Full House)
- Row 2 / Column 8 → 3 (Full House)
- Row 5 / Column 4 → 5 (Naked Single)
- Row 5 / Column 6 → 1 (Full House)
- Row 8 / Column 6 → 5 (Full House)
- Row 8 / Column 4 → 4 (Full House)
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