# Solution for Evil Sudoku #1242713524895

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

This Sudoku Puzzle has 62 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Pair, Naked Single, Locked Pair, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 1 → 1 (Hidden Single)
2. Row 3 / Column 3 → 4 (Hidden Single)
3. Locked Candidates Type 1 (Pointing): 8 in b8 => r9c79<>8
4. Locked Candidates Type 2 (Claiming): 3 in c1 => r8c23,r9c2<>3
5. Locked Candidates Type 2 (Claiming): 8 in c9 => r1c8<>8
6. Naked Pair: 6,9 in r47c4 => r2369c4<>6, r2369c4<>9
7. Row 6 / Column 4 → 1 (Naked Single)
8. Row 2 / Column 4 → 7 (Naked Single)
9. Row 3 / Column 4 → 8 (Naked Single)
10. Row 9 / Column 4 → 8 (Naked Single)
11. Row 3 / Column 6 → 1 (Hidden Single)
12. Row 1 / Column 3 → 7 (Hidden Single)
13. Row 8 / Column 6 → 7 (Hidden Single)
14. Row 9 / Column 9 → 7 (Hidden Single)
15. Row 1 / Column 9 → 8 (Hidden Single)
16. Row 5 / Column 8 → 7 (Hidden Single)
17. Naked Pair: 6,9 in r4c4,r6c6 => r4c6,r5c5<>6, r4c6,r5c5<>9
18. Row 4 / Column 6 → 3 (Naked Single)
19. Row 5 / Column 5 → 3 (Naked Single)
20. Row 2 / Column 2 → 3 (Hidden Single)
21. Locked Pair: 6,9 in r5c23 => r4c23,r5c79,r6c2<>6, r4c23,r5c79,r6c2<>9
22. Row 5 / Column 7 → 2 (Naked Single)
23. Row 5 / Column 9 → 2 (Naked Single)
24. Row 4 / Column 3 → 5 (Naked Single)
25. Row 4 / Column 2 → 8 (Naked Single)
26. Row 6 / Column 2 → 8 (Naked Single)
27. Row 1 / Column 8 → 2 (Hidden Single)
28. Row 8 / Column 7 → 8 (Hidden Single)
29. Row 7 / Column 1 → 2 (Hidden Single)
30. Row 8 / Column 1 → 3 (Hidden Single)
31. Row 3 / Column 2 → 2 (Hidden Single)
32. Row 7 / Column 7 → 3 (Hidden Single)
33. Row 9 / Column 2 → 5 (Hidden Single)
34. Locked Pair: 6,9 in r8c23 => r8c8,r9c1<>6, r8c8,r9c1<>9
35. Row 8 / Column 8 → 9 (Naked Single)
36. Row 9 / Column 1 → 9 (Naked Single)
37. Row 4 / Column 8 → 6 (Naked Single)
38. Row 4 / Column 4 → 9 (Full House)
39. Row 8 / Column 2 → 6 (Naked Single)
40. Row 8 / Column 3 → 6 (Naked Single)
41. Row 9 / Column 7 → 6 (Naked Single)
42. Row 9 / Column 5 → 6 (Naked Single)
43. Row 6 / Column 8 → 5 (Naked Single)
44. Row 7 / Column 8 → 1 (Naked Single)
45. Row 6 / Column 6 → 6 (Naked Single)
46. Row 7 / Column 4 → 6 (Naked Single)
47. Row 5 / Column 2 → 9 (Naked Single)
48. Row 2 / Column 3 → 9 (Naked Single)
49. Row 5 / Column 3 → 9 (Naked Single)
50. Row 7 / Column 9 → 1 (Naked Single)
51. Row 2 / Column 8 → 1 (Naked Single)
52. Row 6 / Column 7 → 9 (Naked Single)
53. Row 2 / Column 7 → 5 (Full House)
54. Row 2 / Column 9 → 6 (Naked Single)
55. Row 3 / Column 9 → 9 (Naked Single)
56. Row 3 / Column 5 → 5 (Naked Single)
57. Row 1 / Column 5 → 9 (Full House)
58. Row 1 / Column 6 → 9 (Full House)
59. Row 3 / Column 1 → 6 (Full House)
60. Row 1 / Column 1 → 5 (Full House)
61. Row 7 / Column 5 → 9 (Naked Single)
62. Row 7 / Column 6 → 5 (Naked Single)