Solution for Evil Sudoku #1331756984295

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

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

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Solution Steps:

  1. Row 4 / Column 4 → 5 (Naked Single)
  2. Row 4 / Column 6 → 1 (Naked Single)
  3. Row 6 / Column 4 → 4 (Naked Single)
  4. Row 6 / Column 6 → 6 (Naked Single)
  5. Row 5 / Column 5 → 3 (Full House)
  6. Row 1 / Column 5 → 5 (Hidden Single)
  7. Row 1 / Column 3 → 4 (Hidden Single)
  8. Row 6 / Column 7 → 5 (Hidden Single)
  9. Row 7 / Column 5 → 4 (Hidden Single)
  10. Locked Pair: 6,8 in r23c5 => r2c4,r89c5<>8
  11. Locked Triple: 1,5,9 in r789c8 => r2c8,r89c9,r9c7<>1, r23c8,r8c9<>9
  12. Locked Candidates Type 1 (Pointing): 1 in b1 => r78c2<>1
  13. Locked Candidates Type 1 (Pointing): 9 in b1 => r5c1<>9
  14. Locked Candidates Type 1 (Pointing): 2 in b4 => r79c1<>2
  15. Locked Candidates Type 1 (Pointing): 3 in b6 => r4c13<>3
  16. Row 4 / Column 3 → 8 (Naked Single)
  17. Row 2 / Column 1 → 3 (Hidden Single)
  18. Row 2 / Column 8 → 6 (Naked Single)
  19. Row 2 / Column 5 → 8 (Naked Single)
  20. Row 2 / Column 2 → 1 (Naked Single)
  21. Row 3 / Column 5 → 6 (Naked Single)
  22. Row 3 / Column 2 → 8 (Naked Single)
  23. Row 1 / Column 2 → 6 (Naked Single)
  24. Row 1 / Column 1 → 9 (Full House)
  25. Row 7 / Column 2 → 2 (Naked Single)
  26. Locked Candidates Type 1 (Pointing): 2 in b8 => r8c9<>2
  27. Row 8 / Column 9 → 8 (Naked Single)
  28. Row 1 / Column 9 → 1 (Naked Single)
  29. Row 1 / Column 7 → 8 (Full House)
  30. Row 7 / Column 4 → 8 (Hidden Single)
  31. Row 7 / Column 1 → 6 (Naked Single)
  32. Row 5 / Column 1 → 2 (Naked Single)
  33. Row 7 / Column 3 → 1 (Naked Single)
  34. Row 7 / Column 8 → 9 (Full House)
  35. Row 4 / Column 1 → 7 (Naked Single)
  36. Row 9 / Column 1 → 8 (Full House)
  37. Row 5 / Column 9 → 9 (Naked Single)
  38. Row 9 / Column 3 → 5 (Naked Single)
  39. Row 4 / Column 8 → 3 (Naked Single)
  40. Row 4 / Column 7 → 2 (Full House)
  41. Row 6 / Column 2 → 3 (Naked Single)
  42. Row 8 / Column 2 → 7 (Full House)
  43. Row 8 / Column 3 → 3 (Full House)
  44. Row 5 / Column 3 → 6 (Naked Single)
  45. Row 5 / Column 7 → 1 (Full House)
  46. Row 6 / Column 9 → 7 (Full House)
  47. Row 6 / Column 3 → 9 (Full House)
  48. Row 9 / Column 8 → 1 (Naked Single)
  49. Row 3 / Column 8 → 7 (Naked Single)
  50. Row 8 / Column 8 → 5 (Full House)
  51. Row 9 / Column 7 → 4 (Naked Single)
  52. Row 9 / Column 9 → 2 (Full House)
  53. Row 3 / Column 9 → 4 (Full House)
  54. Row 9 / Column 5 → 7 (Full House)
  55. Row 8 / Column 5 → 1 (Full House)
  56. Row 2 / Column 7 → 9 (Naked Single)
  57. Row 3 / Column 7 → 3 (Full House)
  58. Row 3 / Column 6 → 9 (Full House)
  59. Row 2 / Column 4 → 2 (Naked Single)
  60. Row 2 / Column 6 → 4 (Full House)
  61. Row 8 / Column 6 → 2 (Full House)
  62. Row 8 / Column 4 → 9 (Full House)
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