Solution for Evil Sudoku #2414785639292
4
9
8
3
5
7
2
1
6
2
3
1
4
6
9
8
7
5
7
6
5
1
2
8
3
4
9
6
3
4
7
8
1
9
2
5
9
5
8
3
4
2
7
1
6
2
7
1
9
5
6
8
3
4
1
4
3
8
6
9
5
7
2
6
9
7
5
2
3
1
8
4
5
8
2
4
1
7
6
9
3
This Sudoku Puzzle has 71 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Full House, Naked Pair techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 6 → 9 (Hidden Single)
- Row 9 / Column 8 → 9 (Hidden Single)
- Row 4 / Column 9 → 1 (Hidden Single)
- Row 5 / Column 3 → 1 (Hidden Single)
- Row 6 / Column 9 → 4 (Hidden Single)
- Locked Pair: 2,5 in r6c23 => r4c13,r6c178<>2, r4c13,r6c148<>5
- Row 6 / Column 1 → 9 (Naked Single)
- Row 4 / Column 4 → 9 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 1 in b2 => r789c6<>1
- Locked Candidates Type 1 (Pointing): 4 in b4 => r4c56<>4
- Locked Candidates Type 1 (Pointing): 8 in b5 => r4c78<>8
- Locked Candidates Type 1 (Pointing): 5 in b6 => r12c8<>5
- Locked Candidates Type 1 (Pointing): 3 in b7 => r7c46<>3
- Locked Candidates Type 2 (Claiming): 4 in c2 => r7c13,r9c13<>4
- Locked Candidates Type 2 (Claiming): 8 in c9 => r1c78,r2c8<>8
- Locked Pair: 6,7 in r1c78 => r1c13,r3c7<>6, r1c36,r2c8,r3c7<>7
- Row 2 / Column 3 → 7 (Hidden Single)
- Row 2 / Column 9 → 8 (Hidden Single)
- Row 1 / Column 9 → 5 (Full House)
- Row 1 / Column 6 → 1 (Naked Single)
- Row 1 / Column 1 → 4 (Naked Single)
- Row 1 / Column 3 → 8 (Naked Single)
- Row 4 / Column 1 → 6 (Naked Single)
- Row 4 / Column 3 → 4 (Naked Single)
- Locked Candidates Type 1 (Pointing): 5 in b2 => r3c123<>5
- Naked Pair: 2,5 in r26c2 => r38c2<>2, r8c2<>5
- Locked Candidates Type 1 (Pointing): 2 in b7 => r9c56<>2
- Locked Candidates Type 1 (Pointing): 5 in b7 => r9c456<>5
- Locked Pair: 4,8 in r9c56 => r78c6,r8c5,r9c7<>4, r7c6,r9c7<>8
- Row 9 / Column 7 → 6 (Naked Single)
- Row 7 / Column 6 → 7 (Naked Single)
- Row 1 / Column 7 → 7 (Naked Single)
- Row 1 / Column 8 → 6 (Full House)
- Row 8 / Column 7 → 4 (Naked Single)
- Row 8 / Column 8 → 1 (Naked Single)
- Row 7 / Column 8 → 8 (Full House)
- Row 9 / Column 4 → 1 (Naked Single)
- Row 3 / Column 6 → 5 (Naked Single)
- Row 3 / Column 5 → 7 (Full House)
- Row 4 / Column 7 → 2 (Naked Single)
- Row 8 / Column 2 → 6 (Naked Single)
- Row 7 / Column 4 → 6 (Naked Single)
- Row 3 / Column 7 → 3 (Naked Single)
- Row 2 / Column 8 → 2 (Full House)
- Row 6 / Column 7 → 8 (Full House)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 3 / Column 2 → 1 (Naked Single)
- Row 7 / Column 3 → 3 (Naked Single)
- Row 2 / Column 2 → 5 (Naked Single)
- Row 2 / Column 1 → 3 (Full House)
- Row 4 / Column 5 → 5 (Naked Single)
- Row 4 / Column 8 → 7 (Full House)
- Row 9 / Column 6 → 4 (Naked Single)
- Row 3 / Column 1 → 2 (Naked Single)
- Row 3 / Column 3 → 6 (Full House)
- Row 7 / Column 2 → 4 (Naked Single)
- Row 7 / Column 1 → 1 (Full House)
- Row 6 / Column 2 → 2 (Full House)
- Row 9 / Column 1 → 5 (Full House)
- Row 6 / Column 3 → 5 (Full House)
- Row 9 / Column 3 → 2 (Full House)
- Row 9 / Column 5 → 8 (Full House)
- Row 5 / Column 4 → 3 (Naked Single)
- Row 8 / Column 5 → 2 (Naked Single)
- Row 5 / Column 5 → 4 (Full House)
- Row 6 / Column 8 → 3 (Naked Single)
- Row 5 / Column 8 → 5 (Full House)
- Row 5 / Column 6 → 2 (Full House)
- Row 6 / Column 4 → 7 (Full House)
- Row 8 / Column 4 → 5 (Full House)
- Row 8 / Column 6 → 3 (Full House)
Show More...