Solution for Evil Sudoku #1156713524895

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

This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Hidden Pair, Give Up techniques.

Naked Single Explanation
Hidden Single Explanation
Hidden Pair Explanation
Locked Candidates Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 9 / Column 5 → 1 (Hidden Single)
  2. Row 9 / Column 7 → 4 (Hidden Single)
  3. Row 8 / Column 9 → 5 (Hidden Single)
  4. Row 7 / Column 2 → 5 (Hidden Single)
  5. Row 8 / Column 2 → 3 (Hidden Single)
  6. Row 7 / Column 1 → 7 (Hidden Single)
  7. Row 4 / Column 1 → 9 (Naked Single)
  8. Row 6 / Column 2 → 7 (Hidden Single)
  9. Row 4 / Column 8 → 7 (Hidden Single)
  10. Row 1 / Column 1 → 4 (Hidden Single)
  11. Row 1 / Column 9 → 7 (Hidden Single)
  12. Row 2 / Column 5 → 7 (Hidden Single)
  13. Row 1 / Column 3 → 8 (Hidden Single)
  14. Row 5 / Column 1 → 8 (Hidden Single)
  15. Row 6 / Column 9 → 8 (Hidden Single)
  16. Row 2 / Column 1 → 2 (Hidden Single)
  17. Row 9 / Column 1 → 6 (Full House)
  18. Row 6 / Column 7 → 2 (Hidden Single)
  19. Row 8 / Column 8 → 6 (Hidden Single)
  20. Row 1 / Column 5 → 2 (Hidden Single)
  21. Row 8 / Column 6 → 2 (Hidden Single)
  22. Row 8 / Column 4 → 8 (Hidden Single)
  23. Locked Candidates Type 1 (Pointing): 9 in b6 => r5c5<>9
  24. Locked Candidates Type 1 (Pointing): 3 in b8 => r7c8<>3
  25. Naked Pair: 8,9 in r2c68 => r2c247<>9
  26. Row 2 / Column 4 → 6 (Naked Single)
  27. Row 2 / Column 2 → 1 (Naked Single)
  28. Row 2 / Column 7 → 1 (Naked Single)
  29. Row 6 / Column 4 → 9 (Naked Single)
  30. Row 6 / Column 6 → 1 (Naked Single)
  31. Row 6 / Column 3 → 6 (Full House)
  32. Row 4 / Column 6 → 4 (Naked Single)
  33. Row 5 / Column 3 → 5 (Naked Single)
  34. Row 4 / Column 3 → 1 (Full House)
  35. Row 4 / Column 4 → 3 (Naked Single)
  36. Row 4 / Column 7 → 5 (Full House)
  37. Row 5 / Column 5 → 6 (Full House)
  38. Row 7 / Column 4 → 4 (Full House)
  39. Row 8 / Column 5 → 9 (Naked Single)
  40. Row 7 / Column 5 → 3 (Full House)
  41. Row 3 / Column 5 → 4 (Full House)
  42. Row 8 / Column 3 → 4 (Full House)
  43. Hidden Pair: 1,2 in r3c89 => r3c89<>3, r3c8<>8, r3c89<>9
  44. Row 3 / Column 8 → 2 (Naked Single)
  45. Row 3 / Column 9 → 2 (Naked Single)
  46. Row 7 / Column 8 → 9 (Naked Single)
  47. Row 7 / Column 3 → 2 (Full House)
  48. Row 9 / Column 8 → 3 (Full House)
  49. Row 2 / Column 8 → 8 (Full House)
  50. Row 9 / Column 9 → 3 (Full House)
  51. Row 9 / Column 3 → 9 (Full House)
  52. Row 2 / Column 6 → 9 (Naked Single)
  53. Row 3 / Column 6 → 8 (Full House)
  54. Row 5 / Column 9 → 9 (Naked Single)
  55. Row 5 / Column 7 → 3 (Full House)
  56. Give Up: Don't know how to proceed!
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