Solution for Evil Sudoku #2441276385940
2
3
7
5
6
4
9
1
8
6
5
9
2
8
1
4
7
3
1
4
8
7
9
3
6
2
5
1
8
5
7
2
9
3
4
6
3
4
7
1
6
5
9
2
8
9
6
2
8
3
4
5
7
1
8
7
3
4
9
1
6
5
2
5
9
2
8
3
6
7
1
4
4
1
6
2
5
7
3
8
9
This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Naked Triple, Hidden Pair, Skyscraper, Uniqueness Test 1 techniques.
Naked Single
Explanation
Hidden Single
Explanation
Hidden Pair
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 4 / Column 2 → 8 (Naked Single)
- Row 4 / Column 3 → 5 (Naked Single)
- Row 1 / Column 1 → 2 (Hidden Single)
- Row 5 / Column 1 → 7 (Hidden Single)
- Row 2 / Column 3 → 4 (Hidden Single)
- Row 5 / Column 8 → 3 (Hidden Single)
- Row 7 / Column 3 → 3 (Hidden Single)
- Row 8 / Column 7 → 2 (Hidden Single)
- Row 8 / Column 2 → 9 (Naked Single)
- Row 9 / Column 1 → 6 (Naked Single)
- Row 7 / Column 1 → 8 (Naked Single)
- Row 9 / Column 3 → 2 (Full House)
- Row 6 / Column 3 → 6 (Naked Single)
- Row 3 / Column 3 → 8 (Full House)
- Row 5 / Column 2 → 2 (Full House)
- Row 6 / Column 8 → 7 (Hidden Single)
- Row 8 / Column 8 → 5 (Naked Single)
- Row 8 / Column 9 → 7 (Naked Single)
- Row 6 / Column 5 → 2 (Hidden Single)
- Row 1 / Column 9 → 8 (Hidden Single)
- Row 2 / Column 1 → 5 (Hidden Single)
- Row 3 / Column 1 → 9 (Full House)
- Row 7 / Column 4 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b6 => r17c7<>9
- Row 2 / Column 8 → 9 (Hidden Single)
- Row 7 / Column 8 → 1 (Full House)
- Naked Triple: 1,5,6 in r3c279 => r3c5<>6, r3c6<>1
- Hidden Pair: 1,6 in r15c4 => r1c4<>9
- Row 1 / Column 6 → 9 (Hidden Single)
- Naked Triple: 3,4,7 in r349c6 => r5c6<>4
- Skyscraper: 4 in r5c5,r9c6 (connected by r59c9) => r4c6,r7c5<>4
- Row 7 / Column 5 → 9 (Naked Single)
- Row 9 / Column 4 → 7 (Naked Single)
- Row 9 / Column 6 → 4 (Naked Single)
- Row 9 / Column 9 → 9 (Full House)
- Uniqueness Test 1: 3/7 in r3c56,r4c56 => r4c5<>3, r4c5<>7
- Row 4 / Column 5 → 4 (Naked Single)
- Row 4 / Column 7 → 9 (Naked Single)
- Row 5 / Column 5 → 6 (Naked Single)
- Row 4 / Column 4 → 3 (Naked Single)
- Row 4 / Column 6 → 7 (Full House)
- Row 6 / Column 7 → 5 (Naked Single)
- Row 5 / Column 9 → 4 (Full House)
- Row 2 / Column 5 → 8 (Naked Single)
- Row 5 / Column 4 → 1 (Naked Single)
- Row 5 / Column 6 → 5 (Full House)
- Row 8 / Column 4 → 8 (Naked Single)
- Row 8 / Column 5 → 3 (Full House)
- Row 3 / Column 5 → 7 (Full House)
- Row 3 / Column 6 → 3 (Naked Single)
- Row 6 / Column 6 → 8 (Naked Single)
- Row 2 / Column 6 → 1 (Full House)
- Row 1 / Column 4 → 6 (Full House)
- Row 6 / Column 4 → 9 (Full House)
- Row 2 / Column 2 → 6 (Full House)
- Row 1 / Column 7 → 1 (Full House)
- Row 3 / Column 2 → 1 (Full House)
- Row 7 / Column 9 → 6 (Naked Single)
- Row 3 / Column 9 → 5 (Full House)
- Row 3 / Column 7 → 6 (Full House)
- Row 7 / Column 7 → 4 (Full House)
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