# Solution for Evil Sudoku #1237246195840

5
3
7
4
7
6
2
1
9
1
3
8
7
7
9
6
2
1
4
3
2
5
2
4
1
3

This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Naked Triple, Hidden Pair, Skyscraper, Uniqueness Test 1 techniques.

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## Solution Steps:

1. Row 6 / Column 2 → 9 (Naked Single)
2. Row 6 / Column 3 → 5 (Naked Single)
3. Row 2 / Column 7 → 2 (Hidden Single)
4. Row 2 / Column 2 → 8 (Naked Single)
5. Row 5 / Column 8 → 1 (Hidden Single)
6. Row 3 / Column 3 → 1 (Hidden Single)
7. Row 5 / Column 1 → 4 (Hidden Single)
8. Row 9 / Column 1 → 2 (Hidden Single)
9. Row 1 / Column 1 → 6 (Naked Single)
10. Row 1 / Column 3 → 2 (Naked Single)
11. Row 3 / Column 1 → 9 (Full House)
12. Row 4 / Column 3 → 6 (Naked Single)
13. Row 5 / Column 2 → 2 (Full House)
14. Row 7 / Column 3 → 9 (Naked Single)
15. Row 8 / Column 3 → 3 (Full House)
16. Row 4 / Column 8 → 4 (Hidden Single)
17. Row 2 / Column 8 → 5 (Naked Single)
18. Row 2 / Column 9 → 4 (Naked Single)
19. Row 4 / Column 5 → 2 (Hidden Single)
20. Row 9 / Column 9 → 9 (Hidden Single)
21. Row 3 / Column 4 → 5 (Hidden Single)
22. Row 8 / Column 1 → 5 (Hidden Single)
23. Row 7 / Column 1 → 8 (Full House)
24. Locked Candidates Type 1 (Pointing): 8 in b6 => r39c7<>8
25. Row 8 / Column 8 → 8 (Hidden Single)
26. Row 3 / Column 8 → 7 (Full House)
27. Naked Triple: 5,6,7 in r7c279 => r7c5<>6, r7c6<>7
28. Hidden Pair: 6,7 in r59c4 => r9c4<>8
29. Row 9 / Column 6 → 8 (Hidden Single)
30. Naked Triple: 1,3,4 in r167c6 => r5c6<>3
31. Skyscraper: 3 in r1c6,r5c5 (connected by r15c9) => r3c5,r6c6<>3
32. Row 3 / Column 5 → 8 (Naked Single)
33. Row 1 / Column 4 → 4 (Naked Single)
34. Row 1 / Column 6 → 3 (Naked Single)
35. Row 1 / Column 9 → 8 (Full House)
36. Uniqueness Test 1: 1/4 in r6c56,r7c56 => r6c5<>1, r6c5<>4
37. Row 6 / Column 5 → 3 (Naked Single)
38. Row 5 / Column 5 → 6 (Naked Single)
39. Row 6 / Column 7 → 8 (Naked Single)
40. Row 5 / Column 4 → 7 (Naked Single)
41. Row 8 / Column 5 → 9 (Naked Single)
42. Row 4 / Column 7 → 5 (Naked Single)
43. Row 5 / Column 9 → 3 (Full House)
44. Row 5 / Column 6 → 5 (Full House)
45. Row 6 / Column 4 → 1 (Naked Single)
46. Row 6 / Column 6 → 4 (Full House)
47. Row 9 / Column 4 → 6 (Naked Single)
48. Row 9 / Column 7 → 7 (Full House)
49. Row 2 / Column 5 → 1 (Naked Single)
50. Row 2 / Column 4 → 9 (Full House)
51. Row 7 / Column 5 → 4 (Full House)
52. Row 4 / Column 4 → 8 (Full House)
53. Row 4 / Column 6 → 9 (Full House)
54. Row 8 / Column 6 → 7 (Naked Single)
55. Row 7 / Column 6 → 1 (Full House)
56. Row 8 / Column 2 → 6 (Full House)
57. Row 7 / Column 2 → 7 (Full House)
58. Row 3 / Column 9 → 6 (Naked Single)
59. Row 3 / Column 7 → 3 (Full House)
60. Row 7 / Column 7 → 6 (Full House)
61. Row 7 / Column 9 → 5 (Full House)