Solution for Evil Sudoku #1375619842340
6
2
3
8
9
5
1
7
4
5
1
8
4
6
7
2
3
9
4
7
9
1
3
2
8
5
6
9
6
7
2
4
1
3
5
8
8
5
3
7
9
6
1
2
4
2
4
1
3
8
5
6
9
7
5
1
9
7
3
6
4
8
2
3
4
2
9
8
1
6
7
5
7
6
8
5
2
4
9
1
3
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 2 / Column 4 → 4 (Naked Single)
- Row 3 / Column 4 → 2 (Naked Single)
- Row 1 / Column 5 → 1 (Hidden Single)
- Row 3 / Column 2 → 7 (Hidden Single)
- Row 3 / Column 7 → 8 (Hidden Single)
- Row 1 / Column 1 → 6 (Hidden Single)
- Row 8 / Column 5 → 8 (Hidden Single)
- Row 7 / Column 8 → 6 (Hidden Single)
- Row 2 / Column 8 → 3 (Naked Single)
- Row 1 / Column 9 → 9 (Naked Single)
- Row 1 / Column 7 → 4 (Naked Single)
- Row 3 / Column 9 → 6 (Full House)
- Row 3 / Column 6 → 9 (Naked Single)
- Row 2 / Column 5 → 6 (Full House)
- Row 3 / Column 3 → 4 (Full House)
- Row 8 / Column 6 → 1 (Hidden Single)
- Row 8 / Column 8 → 2 (Naked Single)
- Row 9 / Column 8 → 1 (Naked Single)
- Row 5 / Column 6 → 6 (Hidden Single)
- Row 9 / Column 1 → 4 (Hidden Single)
- Row 4 / Column 7 → 2 (Hidden Single)
- Row 1 / Column 2 → 2 (Hidden Single)
- Row 1 / Column 3 → 3 (Full House)
- Locked Candidates Type 1 (Pointing): 3 in b8 => r7c17<>3
- Row 8 / Column 2 → 3 (Hidden Single)
- Row 8 / Column 7 → 5 (Full House)
- Naked Triple: 2,5,9 in r279c3 => r5c3<>9, r6c3<>5
- Hidden Pair: 5,9 in r4c15 => r4c1<>3
- Row 6 / Column 1 → 3 (Hidden Single)
- Naked Triple: 1,7,8 in r6c349 => r6c5<>7
- Skyscraper: 7 in r6c9,r7c7 (connected by r67c4) => r5c7,r9c9<>7
- Row 5 / Column 7 → 3 (Naked Single)
- Row 9 / Column 9 → 3 (Naked Single)
- Row 4 / Column 9 → 1 (Naked Single)
- Row 6 / Column 9 → 7 (Full House)
- Uniqueness Test 1: 1/8 in r5c34,r6c34 => r5c4<>1, r5c4<>8
- Row 5 / Column 4 → 7 (Naked Single)
- Row 5 / Column 5 → 9 (Naked Single)
- Row 7 / Column 4 → 3 (Naked Single)
- Row 4 / Column 5 → 5 (Naked Single)
- Row 5 / Column 2 → 4 (Naked Single)
- Row 4 / Column 4 → 8 (Naked Single)
- Row 6 / Column 4 → 1 (Full House)
- Row 7 / Column 6 → 2 (Naked Single)
- Row 9 / Column 5 → 7 (Full House)
- Row 6 / Column 5 → 2 (Full House)
- Row 4 / Column 1 → 9 (Naked Single)
- Row 7 / Column 1 → 5 (Full House)
- Row 5 / Column 8 → 8 (Naked Single)
- Row 4 / Column 8 → 4 (Full House)
- Row 5 / Column 3 → 1 (Full House)
- Row 4 / Column 6 → 3 (Full House)
- Row 6 / Column 6 → 4 (Full House)
- Row 6 / Column 2 → 5 (Naked Single)
- Row 6 / Column 3 → 8 (Full House)
- Row 2 / Column 2 → 9 (Full House)
- Row 2 / Column 3 → 5 (Full House)
- Row 9 / Column 7 → 9 (Naked Single)
- Row 7 / Column 7 → 7 (Full House)
- Row 7 / Column 3 → 9 (Full House)
- Row 9 / Column 3 → 2 (Full House)
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