Solution for Evil Sudoku #1151713524895

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

This Sudoku Puzzle has 57 steps and it is solved using Hidden Single, Locked Candidates Type 2 (Claiming), Naked Single, Full House techniques.

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Solution Steps:

1. Row 9 / Column 7 → 4 (Hidden Single)
2. Row 8 / Column 9 → 5 (Hidden Single)
3. Row 7 / Column 2 → 5 (Hidden Single)
4. Row 8 / Column 2 → 3 (Hidden Single)
5. Row 7 / Column 1 → 7 (Hidden Single)
6. Row 6 / Column 2 → 7 (Hidden Single)
7. Row 4 / Column 8 → 7 (Hidden Single)
8. Row 1 / Column 1 → 4 (Hidden Single)
9. Row 1 / Column 9 → 7 (Hidden Single)
10. Row 6 / Column 3 → 1 (Hidden Single)
11. Row 2 / Column 5 → 7 (Hidden Single)
12. Row 1 / Column 3 → 8 (Hidden Single)
13. Row 6 / Column 9 → 8 (Hidden Single)
14. Row 5 / Column 1 → 8 (Hidden Single)
15. Row 2 / Column 1 → 2 (Hidden Single)
16. Row 6 / Column 7 → 2 (Hidden Single)
17. Row 1 / Column 5 → 2 (Hidden Single)
18. Row 8 / Column 6 → 2 (Hidden Single)
19. Row 8 / Column 4 → 8 (Hidden Single)
20. Locked Candidates Type 2 (Claiming): 6 in r6 => r4c46,r5c5<>6
21. Locked Candidates Type 2 (Claiming): 9 in r6 => r4c46,r5c5<>9
22. Row 4 / Column 6 → 4 (Naked Single)
23. Row 5 / Column 5 → 3 (Naked Single)
24. Row 4 / Column 4 → 3 (Naked Single)
25. Row 3 / Column 5 → 4 (Hidden Single)
26. Row 7 / Column 4 → 4 (Hidden Single)
27. Row 3 / Column 7 → 3 (Hidden Single)
28. Row 7 / Column 8 → 3 (Hidden Single)
29. Row 8 / Column 3 → 4 (Hidden Single)
30. Row 7 / Column 3 → 2 (Hidden Single)
31. Row 7 / Column 5 → 6 (Hidden Single)
32. Row 8 / Column 5 → 9 (Full House)
33. Row 9 / Column 5 → 9 (Full House)
34. Row 8 / Column 8 → 6 (Full House)
35. Row 9 / Column 1 → 6 (Full House)
36. Row 9 / Column 3 → 6 (Full House)
37. Row 9 / Column 8 → 2 (Full House)
38. Row 9 / Column 9 → 2 (Full House)
39. Row 4 / Column 1 → 9 (Full House)
40. Row 4 / Column 3 → 5 (Full House)
41. Row 5 / Column 3 → 5 (Full House)
42. Row 4 / Column 7 → 6 (Naked Single)
43. Row 5 / Column 7 → 9 (Full House)
44. Row 5 / Column 9 → 9 (Full House)
45. Row 1 / Column 7 → 1 (Full House)
46. Row 2 / Column 7 → 1 (Full House)
47. Row 3 / Column 9 → 6 (Naked Single)
48. Row 3 / Column 2 → 9 (Naked Single)
49. Row 1 / Column 2 → 6 (Full House)
50. Row 2 / Column 2 → 6 (Full House)
51. Row 3 / Column 6 → 8 (Full House)
52. Row 3 / Column 8 → 8 (Full House)
53. Row 2 / Column 4 → 9 (Full House)
54. Row 2 / Column 6 → 9 (Full House)
55. Row 6 / Column 4 → 6 (Full House)
56. Row 6 / Column 6 → 6 (Full House)
57. Row 2 / Column 8 → 9 (Naked Single)