# Solution for Evil Sudoku #1284713524895

1
8
3
4
2
8
7
3
7
8
4
2
5
8
7
1
8
3
7
8
1
4
1
4
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 Triple, Naked Single, Hidden Pair, Locked Pair, Full House techniques.

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## Solution Steps:

1. Row 8 / Column 8 → 8 (Hidden Single)
2. Row 5 / Column 1 → 1 (Hidden Single)
3. Row 3 / Column 2 → 4 (Hidden Single)
4. Row 7 / Column 1 → 4 (Hidden Single)
5. Row 5 / Column 7 → 4 (Hidden Single)
6. Row 8 / Column 6 → 7 (Hidden Single)
7. Row 5 / Column 8 → 7 (Hidden Single)
8. Row 9 / Column 9 → 7 (Hidden Single)
9. Row 1 / Column 9 → 4 (Hidden Single)
10. Row 1 / Column 3 → 7 (Hidden Single)
11. Row 2 / Column 4 → 7 (Hidden Single)
12. Locked Candidates Type 1 (Pointing): 1 in b2 => r3c9<>1
13. Locked Candidates Type 1 (Pointing): 5 in b7 => r9c5<>5
14. Locked Candidates Type 2 (Claiming): 3 in c1 => r8c23,r9c2<>3
15. Naked Triple: 3,6,9 in r4c46,r5c5 => r6c46<>6, r6c46<>9
16. Row 6 / Column 4 → 1 (Naked Single)
17. Row 6 / Column 6 → 1 (Naked Single)
18. Naked Triple: 5,6,9 in r1c56,r3c6 => r3c45<>6, r3c45<>9, r3c5<>5
19. Row 3 / Column 4 → 8 (Naked Single)
20. Row 3 / Column 5 → 8 (Naked Single)
21. Hidden Pair: 1,3 in r4c6,r5c5 => r4c6,r5c5<>6, r4c6,r5c5<>9
22. Row 4 / Column 6 → 3 (Naked Single)
23. Row 5 / Column 5 → 3 (Naked Single)
24. Row 4 / Column 4 → 6 (Hidden Single)
25. Row 2 / Column 2 → 3 (Hidden Single)
26. Row 7 / Column 7 → 3 (Hidden Single)
27. Row 8 / Column 1 → 3 (Hidden Single)
28. Locked Pair: 5,9 in r4c23 => r4c8,r6c2<>5, r4c8,r5c23,r6c2<>9
29. Row 4 / Column 8 → 9 (Naked Single)
30. Row 4 / Column 2 → 5 (Naked Single)
31. Row 4 / Column 3 → 5 (Naked Single)
32. Row 9 / Column 1 → 5 (Hidden Single)
33. Row 3 / Column 6 → 5 (Hidden Single)
34. Row 7 / Column 5 → 5 (Hidden Single)
35. Row 1 / Column 8 → 5 (Hidden Single)
36. Row 6 / Column 7 → 5 (Hidden Single)
37. Row 1 / Column 1 → 2 (Hidden Single)
38. Row 3 / Column 9 → 2 (Hidden Single)
39. Row 5 / Column 9 → 6 (Naked Single)
40. Row 5 / Column 2 → 2 (Naked Single)
41. Row 5 / Column 3 → 2 (Naked Single)
42. Row 6 / Column 8 → 2 (Naked Single)
43. Row 6 / Column 2 → 6 (Naked Single)
44. Row 8 / Column 2 → 9 (Full House)
45. Row 9 / Column 2 → 9 (Full House)
46. Row 8 / Column 3 → 6 (Naked Single)
47. Row 8 / Column 7 → 2 (Full House)
48. Row 9 / Column 4 → 2 (Naked Single)
49. Row 7 / Column 4 → 9 (Full House)
50. Row 9 / Column 5 → 6 (Full House)
51. Row 7 / Column 6 → 6 (Full House)
52. Row 1 / Column 5 → 9 (Full House)
53. Row 1 / Column 6 → 9 (Full House)
54. Row 2 / Column 3 → 9 (Naked Single)
55. Row 9 / Column 7 → 6 (Full House)
56. Row 7 / Column 9 → 1 (Full House)
57. Row 2 / Column 7 → 6 (Full House)
58. Row 2 / Column 9 → 1 (Full House)
59. Row 3 / Column 1 → 6 (Full House)
60. Row 3 / Column 3 → 9 (Full House)
61. Row 7 / Column 8 → 1 (Naked Single)
62. Row 2 / Column 8 → 1 (Naked Single)