# Solution for Evil Sudoku #1222713524895

1
8
3
4
2
2
7
3
7
2
2
2
5
8
7
1
2
3
7
8
1
4
1
2
5
4

This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Locked Triple, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 2 → 2 (Hidden Single)
2. Row 5 / Column 1 → 1 (Hidden Single)
3. Row 7 / Column 8 → 2 (Hidden Single)
4. Row 7 / Column 1 → 4 (Hidden Single)
5. Row 7 / Column 9 → 1 (Hidden Single)
6. Row 2 / Column 8 → 1 (Hidden Single)
7. Locked Triple: 3,6,9 in r8c123 => r8c67,r9c12<>3, r8c678,r9c12<>6, r8c678,r9c12<>9
8. Row 8 / Column 6 → 7 (Naked Single)
9. Row 8 / Column 7 → 8 (Naked Single)
10. Row 9 / Column 1 → 5 (Naked Single)
11. Row 9 / Column 2 → 5 (Naked Single)
12. Row 8 / Column 8 → 8 (Naked Single)
13. Row 8 / Column 1 → 3 (Hidden Single)
14. Row 1 / Column 3 → 7 (Hidden Single)
15. Row 2 / Column 4 → 7 (Hidden Single)
16. Row 5 / Column 8 → 7 (Hidden Single)
17. Row 9 / Column 9 → 7 (Hidden Single)
18. Row 4 / Column 3 → 5 (Hidden Single)
19. Row 4 / Column 2 → 8 (Hidden Single)
20. Row 1 / Column 9 → 4 (Hidden Single)
21. Row 3 / Column 3 → 4 (Hidden Single)
22. Row 2 / Column 7 → 5 (Hidden Single)
23. Row 4 / Column 6 → 3 (Hidden Single)
24. Row 1 / Column 5 → 8 (Hidden Single)
25. Row 3 / Column 9 → 8 (Hidden Single)
26. Row 6 / Column 8 → 5 (Hidden Single)
27. Row 6 / Column 6 → 4 (Hidden Single)
28. Row 9 / Column 4 → 8 (Hidden Single)
29. Row 1 / Column 6 → 5 (Hidden Single)
30. Row 5 / Column 2 → 4 (Hidden Single)
31. Row 6 / Column 4 → 1 (Hidden Single)
32. Row 3 / Column 6 → 1 (Hidden Single)
33. Row 7 / Column 5 → 5 (Hidden Single)
34. Row 5 / Column 3 → 3 (Hidden Single)
35. Row 2 / Column 2 → 3 (Hidden Single)
36. Row 7 / Column 6 → 6 (Hidden Single)
37. Row 7 / Column 4 → 9 (Naked Single)
38. Row 3 / Column 4 → 6 (Full House)
39. Row 4 / Column 4 → 6 (Full House)
40. Row 7 / Column 7 → 3 (Full House)
41. Row 9 / Column 5 → 3 (Full House)
42. Row 3 / Column 1 → 9 (Full House)
43. Row 3 / Column 5 → 9 (Full House)
44. Row 5 / Column 5 → 9 (Full House)
45. Row 1 / Column 1 → 6 (Full House)
46. Row 2 / Column 3 → 6 (Full House)
47. Row 1 / Column 8 → 9 (Full House)
48. Row 2 / Column 9 → 9 (Full House)
49. Row 4 / Column 8 → 9 (Naked Single)
50. Row 5 / Column 7 → 6 (Naked Single)
51. Row 5 / Column 9 → 6 (Naked Single)
52. Row 8 / Column 3 → 9 (Naked Single)
53. Row 6 / Column 7 → 6 (Naked Single)
54. Row 6 / Column 2 → 9 (Full House)
55. Row 9 / Column 7 → 9 (Naked Single)
56. Row 8 / Column 2 → 6 (Naked Single)