Solution for Evil Sudoku #2151374286942
8
2
7
9
3
5
6
4
1
4
3
5
1
7
6
2
9
8
9
6
1
8
2
4
5
7
3
3
6
9
2
7
4
1
5
8
7
2
4
5
8
1
3
6
9
1
5
8
3
9
6
2
4
7
5
1
6
7
8
3
4
9
2
9
4
3
6
5
2
8
1
7
7
8
2
4
1
9
6
3
5
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 2 → 4 (Hidden Single)
- Row 6 / Column 4 → 3 (Hidden Single)
- Row 4 / Column 1 → 3 (Hidden Single)
- Row 7 / Column 5 → 4 (Hidden Single)
- Row 4 / Column 6 → 4 (Hidden Single)
- Row 8 / Column 8 → 1 (Hidden Single)
- Row 2 / Column 5 → 7 (Hidden Single)
- Row 7 / Column 7 → 7 (Hidden Single)
- Row 6 / Column 9 → 7 (Hidden Single)
- Row 7 / Column 3 → 6 (Hidden Single)
- Row 3 / Column 9 → 3 (Hidden Single)
- Row 2 / Column 2 → 3 (Hidden Single)
- Row 4 / Column 3 → 9 (Hidden Single)
- Row 6 / Column 5 → 6 (Hidden Single)
- Row 5 / Column 9 → 6 (Hidden Single)
- Row 9 / Column 8 → 3 (Hidden Single)
- Row 4 / Column 7 → 1 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 8 in b2 => r8c6<>8
- Locked Candidates Type 1 (Pointing): 1 in b5 => r5c1<>1
- Locked Candidates Type 1 (Pointing): 2 in b8 => r8c2<>2
- Naked Pair: 5,9 in r3c57 => r3c6<>5
- X-Wing: 9 r27 c14 => r1c1,r89c4<>9
- Swordfish: 2 c237 r169 => r1c18,r6c1<>2
- Row 1 / Column 1 → 8 (Naked Single)
- Row 3 / Column 3 → 1 (Naked Single)
- Row 3 / Column 6 → 8 (Naked Single)
- Row 6 / Column 1 → 1 (Hidden Single)
- Naked Pair: 5,6 in r1c68 => r1c7<>5
- Empty Rectangle: 5 in b6 (r3c57) => r4c5<>5
- Row 4 / Column 5 → 2 (Naked Single)
- Row 2 / Column 8 → 2 (Hidden Single)
- Row 1 / Column 7 → 9 (Naked Single)
- Row 2 / Column 1 → 9 (Naked Single)
- Row 1 / Column 2 → 2 (Full House)
- Row 3 / Column 7 → 5 (Naked Single)
- Row 1 / Column 8 → 6 (Full House)
- Row 3 / Column 5 → 9 (Full House)
- Row 6 / Column 7 → 2 (Full House)
- Row 1 / Column 6 → 5 (Full House)
- Row 8 / Column 5 → 5 (Full House)
- Row 7 / Column 1 → 5 (Naked Single)
- Row 5 / Column 1 → 2 (Full House)
- Row 6 / Column 3 → 8 (Naked Single)
- Row 6 / Column 2 → 5 (Full House)
- Row 9 / Column 3 → 2 (Full House)
- Row 5 / Column 6 → 1 (Naked Single)
- Row 5 / Column 4 → 5 (Full House)
- Row 9 / Column 4 → 8 (Naked Single)
- Row 7 / Column 8 → 8 (Naked Single)
- Row 7 / Column 4 → 9 (Full House)
- Row 4 / Column 8 → 5 (Full House)
- Row 4 / Column 9 → 8 (Full House)
- Row 2 / Column 6 → 6 (Naked Single)
- Row 2 / Column 4 → 1 (Full House)
- Row 8 / Column 4 → 6 (Full House)
- Row 8 / Column 6 → 2 (Full House)
- Row 9 / Column 2 → 9 (Naked Single)
- Row 8 / Column 2 → 8 (Full House)
- Row 8 / Column 9 → 9 (Full House)
- Row 9 / Column 9 → 5 (Full House)
Show More...