Solution for Evil Sudoku #1158713524895

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

This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Full House, Locked Pair, Naked Single techniques.

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Solution Steps:

  1. Row 2 / Column 4 → 8 (Hidden Single)
  2. Row 9 / Column 5 → 1 (Hidden Single)
  3. Row 9 / Column 7 → 4 (Hidden Single)
  4. Row 3 / Column 8 → 8 (Hidden Single)
  5. Row 6 / Column 3 → 8 (Hidden Single)
  6. Row 8 / Column 9 → 5 (Hidden Single)
  7. Row 1 / Column 1 → 8 (Hidden Single)
  8. Row 7 / Column 2 → 5 (Hidden Single)
  9. Row 7 / Column 1 → 4 (Hidden Single)
  10. Row 1 / Column 3 → 4 (Hidden Single)
  11. Row 8 / Column 2 → 3 (Hidden Single)
  12. Row 6 / Column 2 → 7 (Hidden Single)
  13. Row 4 / Column 1 → 7 (Hidden Single)
  14. Row 4 / Column 3 → 1 (Hidden Single)
  15. Row 2 / Column 1 → 2 (Hidden Single)
  16. Row 1 / Column 9 → 7 (Hidden Single)
  17. Row 6 / Column 6 → 1 (Hidden Single)
  18. Row 4 / Column 7 → 5 (Hidden Single)
  19. Row 5 / Column 3 → 5 (Hidden Single)
  20. Row 2 / Column 5 → 7 (Hidden Single)
  21. Row 5 / Column 1 → 6 (Hidden Single)
  22. Row 9 / Column 1 → 9 (Full House)
  23. Locked Pair: 3,9 in r5c79 => r4c8,r5c5<>3, r4c8,r5c5,r6c79<>9
  24. Row 5 / Column 5 → 9 (Naked Single)
  25. Row 4 / Column 8 → 6 (Naked Single)
  26. Row 5 / Column 7 → 3 (Naked Single)
  27. Row 5 / Column 9 → 3 (Naked Single)
  28. Row 6 / Column 4 → 6 (Naked Single)
  29. Row 6 / Column 7 → 2 (Full House)
  30. Row 6 / Column 9 → 2 (Full House)
  31. Row 2 / Column 8 → 9 (Naked Single)
  32. Row 4 / Column 6 → 4 (Naked Single)
  33. Row 4 / Column 4 → 3 (Full House)
  34. Row 9 / Column 9 → 6 (Naked Single)
  35. Row 2 / Column 6 → 6 (Naked Single)
  36. Row 2 / Column 2 → 1 (Full House)
  37. Row 2 / Column 7 → 1 (Full House)
  38. Row 3 / Column 7 → 6 (Naked Single)
  39. Row 3 / Column 9 → 6 (Naked Single)
  40. Row 8 / Column 8 → 2 (Naked Single)
  41. Row 7 / Column 8 → 3 (Full House)
  42. Row 9 / Column 8 → 3 (Full House)
  43. Row 7 / Column 4 → 9 (Naked Single)
  44. Row 8 / Column 4 → 4 (Full House)
  45. Row 9 / Column 3 → 2 (Naked Single)
  46. Row 8 / Column 3 → 6 (Full House)
  47. Row 7 / Column 3 → 6 (Full House)
  48. Row 1 / Column 5 → 2 (Naked Single)
  49. Row 8 / Column 6 → 9 (Full House)
  50. Row 3 / Column 6 → 9 (Full House)
  51. Row 1 / Column 7 → 6 (Naked Single)
  52. Row 3 / Column 2 → 9 (Full House)
  53. Row 1 / Column 2 → 9 (Full House)
  54. Row 8 / Column 5 → 6 (Naked Single)
  55. Row 7 / Column 5 → 2 (Naked Single)
  56. Row 3 / Column 5 → 4 (Naked Single)
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