# Solution for Evil Sudoku #1171713524895

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

This Sudoku Puzzle has 64 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Single, Locked Triple, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 2 → 7 (Hidden Single)
2. Row 2 / Column 8 → 7 (Hidden Single)
3. Row 9 / Column 7 → 4 (Hidden Single)
4. Row 6 / Column 3 → 1 (Hidden Single)
5. Row 3 / Column 8 → 8 (Hidden Single)
6. Row 6 / Column 9 → 8 (Hidden Single)
7. Row 6 / Column 7 → 2 (Hidden Single)
8. Locked Candidates Type 1 (Pointing): 4 in b1 => r1c5<>4
9. Locked Candidates Type 1 (Pointing): 8 in b2 => r2c1<>8
10. Locked Candidates Type 1 (Pointing): 2 in b3 => r89c9<>2
11. Locked Candidates Type 1 (Pointing): 5 in b9 => r5c9<>5
12. Locked Candidates Type 2 (Claiming): 6 in r6 => r4c46,r5c5<>6
13. Locked Candidates Type 2 (Claiming): 9 in r6 => r4c46,r5c5<>9
14. Row 4 / Column 6 → 4 (Naked Single)
15. Row 5 / Column 5 → 3 (Naked Single)
16. Row 4 / Column 4 → 3 (Naked Single)
17. Row 3 / Column 5 → 4 (Hidden Single)
18. Row 3 / Column 7 → 3 (Hidden Single)
19. Locked Triple: 2,6,9 in r789c5 => r12c5,r8c6<>2, r12c5,r78c4,r8c6<>6, r12c5,r78c4,r8c6<>9
20. Row 1 / Column 5 → 9 (Naked Single)
21. Row 2 / Column 5 → 9 (Naked Single)
22. Row 6 / Column 4 → 9 (Hidden Single)
23. Row 6 / Column 6 → 6 (Full House)
24. Row 3 / Column 2 → 9 (Hidden Single)
25. Row 2 / Column 4 → 6 (Hidden Single)
26. Row 2 / Column 7 → 1 (Naked Single)
27. Row 1 / Column 7 → 6 (Naked Single)
28. Row 1 / Column 9 → 2 (Full House)
29. Row 3 / Column 9 → 2 (Full House)
30. Row 2 / Column 2 → 5 (Naked Single)
31. Row 1 / Column 2 → 1 (Naked Single)
32. Row 3 / Column 6 → 5 (Naked Single)
33. Row 2 / Column 1 → 2 (Naked Single)
34. Row 8 / Column 6 → 8 (Full House)
35. Row 2 / Column 6 → 8 (Full House)
36. Locked Candidates Type 1 (Pointing): 9 in b2 => r4579c1<>9
37. Locked Candidates Type 1 (Pointing): 9 in b4 => r789c3<>9
38. Row 7 / Column 8 → 9 (Hidden Single)
39. Row 4 / Column 8 → 6 (Naked Single)
40. Row 4 / Column 1 → 5 (Naked Single)
41. Row 5 / Column 9 → 9 (Naked Single)
42. Row 4 / Column 3 → 9 (Naked Single)
43. Row 4 / Column 7 → 9 (Naked Single)
44. Row 9 / Column 1 → 6 (Naked Single)
45. Row 7 / Column 2 → 3 (Full House)
46. Row 8 / Column 2 → 3 (Full House)
47. Row 5 / Column 7 → 5 (Naked Single)
48. Row 5 / Column 1 → 8 (Naked Single)
49. Row 7 / Column 1 → 4 (Full House)
50. Row 1 / Column 1 → 4 (Full House)
51. Row 5 / Column 3 → 6 (Full House)
52. Row 9 / Column 5 → 2 (Naked Single)
53. Row 8 / Column 8 → 2 (Naked Single)
54. Row 9 / Column 8 → 3 (Full House)
55. Row 9 / Column 3 → 5 (Full House)
56. Row 9 / Column 9 → 5 (Full House)
57. Row 7 / Column 4 → 5 (Naked Single)
58. Row 1 / Column 3 → 8 (Naked Single)
59. Row 7 / Column 5 → 6 (Naked Single)
60. Row 7 / Column 3 → 2 (Full House)
61. Row 8 / Column 3 → 5 (Full House)
62. Row 8 / Column 5 → 6 (Naked Single)
63. Row 8 / Column 9 → 6 (Naked Single)
64. Row 8 / Column 4 → 4 (Naked Single)