Solution for Evil Sudoku #1135419682775

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

This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Full House, Naked Pair techniques.

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Solution Steps:

  1. Row 4 / Column 9 → 9 (Naked Single)
  2. Row 4 / Column 8 → 3 (Naked Single)
  3. Row 4 / Column 3 → 7 (Naked Single)
  4. Row 5 / Column 3 → 3 (Naked Single)
  5. Row 5 / Column 1 → 4 (Hidden Single)
  6. Row 5 / Column 4 → 9 (Naked Single)
  7. Row 6 / Column 4 → 3 (Naked Single)
  8. Row 6 / Column 6 → 5 (Naked Single)
  9. Row 5 / Column 6 → 7 (Naked Single)
  10. Row 6 / Column 7 → 8 (Naked Single)
  11. Locked Candidates Type 1 (Pointing): 1 in b1 => r2c4789<>1
  12. Row 1 / Column 4 → 1 (Hidden Single)
  13. Locked Candidates Type 1 (Pointing): 3 in b1 => r89c2<>3
  14. Locked Candidates Type 1 (Pointing): 4 in b9 => r8c256<>4
  15. Locked Candidates Type 1 (Pointing): 7 in b9 => r12c8<>7
  16. Row 1 / Column 8 → 2 (Naked Single)
  17. Row 7 / Column 8 → 7 (Naked Single)
  18. Row 9 / Column 8 → 1 (Naked Single)
  19. Row 8 / Column 7 → 4 (Naked Single)
  20. Row 8 / Column 9 → 2 (Full House)
  21. Row 2 / Column 7 → 7 (Naked Single)
  22. Row 9 / Column 2 → 7 (Hidden Single)
  23. Row 1 / Column 5 → 7 (Hidden Single)
  24. Row 7 / Column 2 → 4 (Hidden Single)
  25. Naked Pair: 2,9 in r67c1 => r29c1<>2, r8c1<>9
  26. Naked Pair: 4,6 in r14c6 => r389c6<>6, r9c6<>4
  27. Row 9 / Column 6 → 2 (Naked Single)
  28. Row 7 / Column 4 → 8 (Naked Single)
  29. Row 9 / Column 3 → 5 (Naked Single)
  30. Row 8 / Column 6 → 9 (Naked Single)
  31. Row 7 / Column 3 → 2 (Naked Single)
  32. Row 3 / Column 6 → 8 (Naked Single)
  33. Row 7 / Column 5 → 5 (Naked Single)
  34. Row 7 / Column 1 → 9 (Full House)
  35. Row 8 / Column 2 → 6 (Naked Single)
  36. Row 2 / Column 3 → 1 (Naked Single)
  37. Row 8 / Column 3 → 8 (Full House)
  38. Row 3 / Column 8 → 9 (Naked Single)
  39. Row 2 / Column 8 → 8 (Full House)
  40. Row 6 / Column 1 → 2 (Naked Single)
  41. Row 6 / Column 2 → 9 (Full House)
  42. Row 1 / Column 2 → 3 (Naked Single)
  43. Row 3 / Column 2 → 2 (Full House)
  44. Row 2 / Column 1 → 6 (Full House)
  45. Row 8 / Column 5 → 3 (Naked Single)
  46. Row 8 / Column 1 → 1 (Full House)
  47. Row 9 / Column 1 → 3 (Full House)
  48. Row 3 / Column 5 → 6 (Naked Single)
  49. Row 1 / Column 7 → 5 (Naked Single)
  50. Row 2 / Column 9 → 4 (Naked Single)
  51. Row 1 / Column 6 → 4 (Naked Single)
  52. Row 1 / Column 9 → 6 (Full House)
  53. Row 4 / Column 6 → 6 (Full House)
  54. Row 4 / Column 4 → 4 (Full House)
  55. Row 3 / Column 9 → 1 (Naked Single)
  56. Row 3 / Column 7 → 3 (Full House)
  57. Row 5 / Column 7 → 1 (Full House)
  58. Row 5 / Column 9 → 5 (Full House)
  59. Row 9 / Column 5 → 4 (Naked Single)
  60. Row 2 / Column 5 → 9 (Full House)
  61. Row 2 / Column 4 → 2 (Full House)
  62. Row 9 / Column 4 → 6 (Full House)
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