Solution for Evil Sudoku #1216734582939
9
2
3
4
7
9
8
4
1
4
1
9
2
5
1
4
5
1
2
8
7
3
7
3
5
8
1
7
This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Full House, Naked Single, Locked Candidates Type 1 (Pointing), Naked Triple, undefined techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 3 / Column 7 → 9 (Hidden Single)
- Row 2 / Column 2 → 1 (Hidden Single)
- Row 1 / Column 4 → 1 (Hidden Single)
- Row 6 / Column 6 → 7 (Hidden Single)
- Row 7 / Column 5 → 1 (Hidden Single)
- Row 8 / Column 1 → 1 (Hidden Single)
- Row 4 / Column 7 → 7 (Hidden Single)
- Row 9 / Column 4 → 9 (Hidden Single)
- Row 1 / Column 8 → 7 (Hidden Single)
- Row 2 / Column 3 → 4 (Hidden Single)
- Row 6 / Column 8 → 3 (Hidden Single)
- Row 4 / Column 4 → 3 (Hidden Single)
- Row 3 / Column 5 → 2 (Hidden Single)
- Row 7 / Column 4 → 2 (Hidden Single)
- Row 9 / Column 6 → 8 (Hidden Single)
- Row 1 / Column 9 → 3 (Hidden Single)
- Row 2 / Column 4 → 8 (Hidden Single)
- Row 3 / Column 4 → 6 (Full House)
- Row 1 / Column 6 → 5 (Naked Single)
- Row 1 / Column 3 → 6 (Full House)
- Row 3 / Column 6 → 3 (Full House)
- Row 7 / Column 7 → 3 (Hidden Single)
- Row 5 / Column 2 → 3 (Hidden Single)
- Row 5 / Column 8 → 8 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b6 => r7c9<>9
- Naked Triple: 5,6,8 in r4c2,r6c13 => r5c1<>6
- W-Wing: 8/5 in r3c2,r6c3 connected by 5 in r36c1 => r3c3,r4c2<>8
- Row 4 / Column 2 → 6 (Naked Single)
- Row 4 / Column 9 → 9 (Naked Single)
- Row 4 / Column 5 → 8 (Full House)
- Row 6 / Column 1 → 5 (Naked Single)
- Row 9 / Column 2 → 4 (Naked Single)
- Row 6 / Column 5 → 6 (Naked Single)
- Row 6 / Column 3 → 8 (Full House)
- Row 5 / Column 5 → 9 (Full House)
- Row 3 / Column 1 → 7 (Naked Single)
- Row 8 / Column 2 → 5 (Naked Single)
- Row 3 / Column 2 → 8 (Full House)
- Row 3 / Column 3 → 5 (Full House)
- Row 5 / Column 1 → 2 (Naked Single)
- Row 5 / Column 3 → 7 (Full House)
- Row 9 / Column 1 → 6 (Full House)
- Row 9 / Column 7 → 2 (Full House)
- Row 7 / Column 3 → 9 (Naked Single)
- Row 8 / Column 3 → 2 (Full House)
- Row 7 / Column 8 → 6 (Naked Single)
- Row 2 / Column 8 → 2 (Naked Single)
- Row 8 / Column 8 → 9 (Full House)
- Row 7 / Column 6 → 4 (Naked Single)
- Row 7 / Column 9 → 5 (Full House)
- Row 8 / Column 7 → 4 (Full House)
- Row 8 / Column 6 → 6 (Full House)
- Row 2 / Column 9 → 6 (Naked Single)
- Row 2 / Column 7 → 5 (Full House)
- Row 5 / Column 7 → 6 (Full House)
- Row 5 / Column 9 → 4 (Full House)
Show More...