Solution for Evil Sudoku #1132713524895

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

This Sudoku Puzzle has 58 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Full House, Naked Pair, Hidden Pair techniques.

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Solution Steps:

  1. Row 5 / Column 5 → 3 (Hidden Single)
  2. Row 9 / Column 5 → 1 (Hidden Single)
  3. Row 9 / Column 7 → 4 (Hidden Single)
  4. Row 4 / Column 7 → 3 (Hidden Single)
  5. Row 8 / Column 9 → 3 (Hidden Single)
  6. Row 5 / Column 7 → 5 (Hidden Single)
  7. Row 7 / Column 2 → 3 (Hidden Single)
  8. Row 9 / Column 9 → 5 (Hidden Single)
  9. Row 7 / Column 1 → 7 (Hidden Single)
  10. Row 6 / Column 2 → 7 (Hidden Single)
  11. Row 4 / Column 8 → 7 (Hidden Single)
  12. Row 1 / Column 1 → 4 (Hidden Single)
  13. Row 1 / Column 9 → 7 (Hidden Single)
  14. Row 2 / Column 5 → 7 (Hidden Single)
  15. Row 1 / Column 3 → 8 (Hidden Single)
  16. Row 5 / Column 1 → 8 (Hidden Single)
  17. Row 6 / Column 9 → 8 (Hidden Single)
  18. Row 2 / Column 1 → 2 (Hidden Single)
  19. Row 4 / Column 1 → 5 (Hidden Single)
  20. Row 9 / Column 1 → 6 (Hidden Single)
  21. Locked Candidates Type 1 (Pointing): 5 in b1 => r8c2<>5
  22. Row 8 / Column 2 → 9 (Naked Single)
  23. Row 9 / Column 3 → 2 (Naked Single)
  24. Row 9 / Column 8 → 9 (Full House)
  25. Row 7 / Column 8 → 6 (Naked Single)
  26. Row 8 / Column 8 → 2 (Full House)
  27. Row 2 / Column 8 → 8 (Full House)
  28. Row 3 / Column 8 → 8 (Full House)
  29. Row 8 / Column 4 → 8 (Hidden Single)
  30. Naked Pair: 6,9 in r6c47 => r6c36<>6, r6c36<>9
  31. Row 6 / Column 3 → 1 (Naked Single)
  32. Row 6 / Column 6 → 1 (Naked Single)
  33. Hidden Pair: 1,8 in r12c7 => r1c7<>2, r12c7<>6, r12c7<>9
  34. Row 1 / Column 7 → 1 (Naked Single)
  35. Row 2 / Column 7 → 1 (Naked Single)
  36. Row 1 / Column 2 → 6 (Naked Single)
  37. Row 2 / Column 2 → 5 (Full House)
  38. Row 3 / Column 2 → 5 (Full House)
  39. Row 1 / Column 5 → 2 (Hidden Single)
  40. Row 3 / Column 7 → 2 (Hidden Single)
  41. Row 7 / Column 4 → 5 (Hidden Single)
  42. Row 7 / Column 3 → 4 (Naked Single)
  43. Row 7 / Column 5 → 9 (Full House)
  44. Row 8 / Column 3 → 5 (Full House)
  45. Row 6 / Column 7 → 6 (Hidden Single)
  46. Row 5 / Column 9 → 9 (Full House)
  47. Row 3 / Column 9 → 6 (Full House)
  48. Row 5 / Column 3 → 6 (Full House)
  49. Row 4 / Column 3 → 9 (Full House)
  50. Row 6 / Column 4 → 9 (Naked Single)
  51. Row 3 / Column 5 → 4 (Naked Single)
  52. Row 8 / Column 5 → 6 (Full House)
  53. Row 8 / Column 6 → 4 (Full House)
  54. Row 2 / Column 4 → 6 (Naked Single)
  55. Row 3 / Column 6 → 9 (Full House)
  56. Row 2 / Column 6 → 9 (Full House)
  57. Row 4 / Column 4 → 4 (Full House)
  58. Row 4 / Column 6 → 6 (Full House)
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