Solution for Evil Sudoku #2461538924740
5
9
3
4
8
6
7
1
2
8
4
7
5
2
1
6
3
9
1
6
2
3
7
9
8
5
4
1
2
4
3
5
7
9
6
8
9
6
3
1
8
4
7
5
2
7
8
5
2
9
6
4
3
1
2
3
9
6
7
1
8
4
5
4
7
5
2
9
8
3
1
6
6
1
8
5
4
3
9
2
7
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 → 2 (Naked Single)
- Row 4 / Column 3 → 4 (Naked Single)
- Row 1 / Column 1 → 5 (Hidden Single)
- Row 5 / Column 1 → 3 (Hidden Single)
- Row 2 / Column 3 → 6 (Hidden Single)
- Row 5 / Column 8 → 9 (Hidden Single)
- Row 7 / Column 3 → 9 (Hidden Single)
- Row 8 / Column 7 → 5 (Hidden Single)
- Row 8 / Column 2 → 7 (Naked Single)
- Row 9 / Column 1 → 8 (Naked Single)
- Row 7 / Column 1 → 2 (Naked Single)
- Row 9 / Column 3 → 5 (Full House)
- Row 6 / Column 3 → 8 (Naked Single)
- Row 3 / Column 3 → 2 (Full House)
- Row 5 / Column 2 → 5 (Full House)
- Row 6 / Column 8 → 3 (Hidden Single)
- Row 8 / Column 8 → 4 (Naked Single)
- Row 8 / Column 9 → 3 (Naked Single)
- Row 6 / Column 5 → 5 (Hidden Single)
- Row 1 / Column 9 → 2 (Hidden Single)
- Row 2 / Column 1 → 4 (Hidden Single)
- Row 3 / Column 1 → 7 (Full House)
- Row 7 / Column 4 → 4 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 7 in b6 => r17c7<>7
- Row 2 / Column 8 → 7 (Hidden Single)
- Row 7 / Column 8 → 1 (Full House)
- Naked Triple: 1,4,8 in r3c279 => r3c5<>8, r3c6<>1
- Hidden Pair: 1,8 in r15c4 => r1c4<>7
- Row 1 / Column 6 → 7 (Hidden Single)
- Naked Triple: 3,6,9 in r349c6 => r5c6<>6
- Skyscraper: 6 in r5c5,r9c6 (connected by r59c9) => r4c6,r7c5<>6
- Row 7 / Column 5 → 7 (Naked Single)
- Row 9 / Column 4 → 3 (Naked Single)
- Row 9 / Column 6 → 6 (Naked Single)
- Row 9 / Column 9 → 7 (Full House)
- Uniqueness Test 1: 3/9 in r3c56,r4c56 => r4c5<>3, r4c5<>9
- Row 4 / Column 5 → 6 (Naked Single)
- Row 4 / Column 7 → 7 (Naked Single)
- Row 5 / Column 5 → 8 (Naked Single)
- Row 4 / Column 4 → 9 (Naked Single)
- Row 4 / Column 6 → 3 (Full House)
- Row 6 / Column 7 → 4 (Naked Single)
- Row 5 / Column 9 → 6 (Full House)
- Row 2 / Column 5 → 2 (Naked Single)
- Row 5 / Column 4 → 1 (Naked Single)
- Row 5 / Column 6 → 4 (Full House)
- Row 8 / Column 4 → 2 (Naked Single)
- Row 8 / Column 5 → 9 (Full House)
- Row 3 / Column 5 → 3 (Full House)
- Row 3 / Column 6 → 9 (Naked Single)
- Row 6 / Column 6 → 2 (Naked Single)
- Row 2 / Column 6 → 1 (Full House)
- Row 1 / Column 4 → 8 (Full House)
- Row 6 / Column 4 → 7 (Full House)
- Row 2 / Column 2 → 8 (Full House)
- Row 1 / Column 7 → 1 (Full House)
- Row 3 / Column 2 → 1 (Full House)
- Row 7 / Column 9 → 8 (Naked Single)
- Row 3 / Column 9 → 4 (Full House)
- Row 3 / Column 7 → 8 (Full House)
- Row 7 / Column 7 → 6 (Full House)
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