Solution for Evil Sudoku #1395713524895

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

This Sudoku Puzzle has 57 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Pair, Locked Candidates Type 1 (Pointing) techniques.

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Solution Steps:

1. Row 4 / Column 6 → 6 (Naked Single)
2. Row 4 / Column 4 → 1 (Naked Single)
3. Row 6 / Column 4 → 4 (Naked Single)
4. Row 6 / Column 6 → 3 (Naked Single)
5. Row 5 / Column 5 → 9 (Full House)
6. Row 3 / Column 6 → 4 (Naked Single)
7. Row 2 / Column 6 → 8 (Naked Single)
8. Row 8 / Column 6 → 5 (Full House)
9. Row 1 / Column 5 → 1 (Hidden Single)
10. Row 1 / Column 3 → 4 (Hidden Single)
11. Row 7 / Column 8 → 5 (Hidden Single)
12. Row 6 / Column 7 → 1 (Hidden Single)
13. Row 7 / Column 5 → 4 (Hidden Single)
14. Row 2 / Column 7 → 4 (Hidden Single)
15. Row 9 / Column 9 → 4 (Hidden Single)
16. Locked Pair: 1,6 in r89c8 => r23c8,r8c9,r9c7<>6
17. Locked Candidates Type 1 (Pointing): 8 in b4 => r79c1<>8
18. Row 9 / Column 7 → 8 (Hidden Single)
19. Row 4 / Column 7 → 9 (Naked Single)
20. Row 8 / Column 9 → 2 (Naked Single)
21. Row 4 / Column 3 → 2 (Naked Single)
22. Row 4 / Column 8 → 7 (Naked Single)
23. Row 4 / Column 1 → 8 (Full House)
24. Row 6 / Column 9 → 6 (Naked Single)
25. Row 1 / Column 9 → 5 (Naked Single)
26. Row 3 / Column 9 → 7 (Naked Single)
27. Row 5 / Column 9 → 8 (Full House)
28. Row 5 / Column 7 → 5 (Full House)
29. Row 6 / Column 3 → 9 (Naked Single)
30. Row 6 / Column 2 → 7 (Full House)
31. Row 2 / Column 1 → 9 (Hidden Single)
32. Row 2 / Column 8 → 3 (Naked Single)
33. Row 3 / Column 8 → 9 (Naked Single)
34. Row 9 / Column 1 → 7 (Hidden Single)
35. Row 8 / Column 2 → 9 (Hidden Single)
36. Row 8 / Column 5 → 7 (Hidden Single)
37. Row 3 / Column 5 → 3 (Hidden Single)
38. Row 9 / Column 5 → 2 (Hidden Single)
39. Row 2 / Column 5 → 6 (Full House)
40. Row 2 / Column 2 → 2 (Full House)
41. Row 2 / Column 4 → 2 (Full House)
42. Row 3 / Column 2 → 6 (Naked Single)
43. Row 1 / Column 1 → 3 (Full House)
44. Row 1 / Column 2 → 3 (Full House)
45. Row 3 / Column 7 → 2 (Full House)
46. Row 1 / Column 7 → 6 (Full House)
47. Row 5 / Column 1 → 6 (Naked Single)
48. Row 5 / Column 3 → 3 (Full House)
49. Row 7 / Column 1 → 2 (Full House)
50. Row 7 / Column 2 → 8 (Naked Single)
51. Row 7 / Column 3 → 6 (Full House)
52. Row 7 / Column 4 → 6 (Full House)
53. Row 8 / Column 3 → 1 (Full House)
54. Row 9 / Column 3 → 1 (Full House)
55. Row 8 / Column 8 → 6 (Full House)
56. Row 8 / Column 4 → 8 (Full House)
57. Row 9 / Column 8 → 6 (Full House)