Solution for Evil Sudoku #2179568341295
4
3
6
1
5
7
8
2
9
8
5
7
3
9
2
4
1
6
1
9
2
8
6
4
5
3
7
9
7
3
2
6
8
5
1
4
1
2
8
5
7
4
6
3
9
6
4
5
9
1
3
2
7
8
6
4
2
7
9
5
3
8
1
9
8
3
2
4
1
7
6
5
7
5
1
3
8
6
4
2
9
This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Pair, Locked Triple, Locked Candidates Type 1 (Pointing) techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 6 / Column 6 → 9 (Naked Single)
- Row 6 / Column 4 → 6 (Naked Single)
- Row 4 / Column 4 → 1 (Naked Single)
- Row 4 / Column 6 → 8 (Naked Single)
- Row 5 / Column 5 → 7 (Full House)
- Row 9 / Column 3 → 1 (Hidden Single)
- Row 9 / Column 5 → 6 (Hidden Single)
- Row 4 / Column 7 → 6 (Hidden Single)
- Row 3 / Column 5 → 1 (Hidden Single)
- Locked Pair: 4,8 in r78c5 => r12c5,r8c4<>4
- Locked Triple: 3,6,9 in r123c8 => r2c9,r78c8<>3, r1c79,r2c9,r8c8<>9
- Locked Candidates Type 1 (Pointing): 2 in b4 => r13c1<>2
- Locked Candidates Type 1 (Pointing): 7 in b6 => r6c13<>7
- Row 6 / Column 3 → 4 (Naked Single)
- Row 8 / Column 1 → 7 (Hidden Single)
- Row 8 / Column 8 → 8 (Naked Single)
- Row 8 / Column 5 → 4 (Naked Single)
- Row 7 / Column 5 → 8 (Naked Single)
- Row 8 / Column 2 → 9 (Naked Single)
- Row 7 / Column 2 → 4 (Naked Single)
- Row 9 / Column 2 → 8 (Naked Single)
- Row 9 / Column 1 → 3 (Full House)
- Row 3 / Column 2 → 2 (Naked Single)
- Locked Candidates Type 1 (Pointing): 2 in b2 => r2c9<>2
- Row 2 / Column 9 → 4 (Naked Single)
- Row 9 / Column 9 → 9 (Naked Single)
- Row 9 / Column 7 → 4 (Full House)
- Row 1 / Column 1 → 4 (Hidden Single)
- Row 3 / Column 1 → 8 (Naked Single)
- Row 3 / Column 3 → 9 (Naked Single)
- Row 5 / Column 1 → 2 (Naked Single)
- Row 6 / Column 1 → 5 (Full House)
- Row 1 / Column 3 → 6 (Naked Single)
- Row 3 / Column 8 → 3 (Naked Single)
- Row 3 / Column 4 → 4 (Full House)
- Row 5 / Column 9 → 3 (Naked Single)
- Row 4 / Column 2 → 7 (Naked Single)
- Row 2 / Column 2 → 5 (Full House)
- Row 2 / Column 3 → 7 (Full House)
- Row 6 / Column 8 → 7 (Naked Single)
- Row 6 / Column 7 → 2 (Full House)
- Row 1 / Column 8 → 9 (Naked Single)
- Row 4 / Column 9 → 5 (Naked Single)
- Row 5 / Column 7 → 9 (Full House)
- Row 5 / Column 3 → 8 (Full House)
- Row 4 / Column 3 → 3 (Full House)
- Row 2 / Column 5 → 9 (Naked Single)
- Row 1 / Column 5 → 5 (Full House)
- Row 7 / Column 8 → 5 (Naked Single)
- Row 2 / Column 8 → 6 (Full House)
- Row 1 / Column 7 → 1 (Naked Single)
- Row 1 / Column 9 → 2 (Full House)
- Row 7 / Column 9 → 1 (Full House)
- Row 8 / Column 7 → 3 (Naked Single)
- Row 7 / Column 7 → 7 (Full House)
- Row 7 / Column 6 → 3 (Full House)
- Row 8 / Column 4 → 2 (Naked Single)
- Row 2 / Column 4 → 3 (Full House)
- Row 2 / Column 6 → 2 (Full House)
- Row 8 / Column 6 → 1 (Full House)
Show More...