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

This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Hidden Single, Locked Triple, Naked Pair, Skyscraper, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 9 / Column 3 → 3 (Naked Single)
  2. Row 6 / Column 1 → 4 (Hidden Single)
  3. Row 3 / Column 3 → 5 (Hidden Single)
  4. Row 9 / Column 1 → 7 (Hidden Single)
  5. Row 8 / Column 8 → 8 (Hidden Single)
  6. Row 6 / Column 8 → 7 (Naked Single)
  7. Row 5 / Column 8 → 2 (Naked Single)
  8. Row 4 / Column 8 → 4 (Naked Single)
  9. Row 1 / Column 3 → 4 (Hidden Single)
  10. Row 4 / Column 5 → 8 (Hidden Single)
  11. Row 5 / Column 5 → 7 (Hidden Single)
  12. Row 2 / Column 6 → 4 (Hidden Single)
  13. Row 3 / Column 7 → 4 (Hidden Single)
  14. Row 6 / Column 9 → 8 (Hidden Single)
  15. Row 9 / Column 5 → 4 (Hidden Single)
  16. Row 2 / Column 4 → 5 (Hidden Single)
  17. Row 6 / Column 6 → 5 (Hidden Single)
  18. Locked Triple: 3,6,9 in r123c1 => r12c2,r5c1<>3, r1c2,r57c1<>6
  19. Row 5 / Column 6 → 3 (Hidden Single)
  20. Row 4 / Column 2 → 3 (Hidden Single)
  21. Row 8 / Column 4 → 3 (Hidden Single)
  22. Naked Pair: 3,9 in r2c18 => r2c9<>3
  23. Skyscraper: 6 in r6c2,r7c3 (connected by r67c4) => r5c3,r8c2<>6
  24. Row 5 / Column 3 → 8 (Naked Single)
  25. Row 7 / Column 3 → 6 (Full House)
  26. Row 8 / Column 2 → 1 (Naked Single)
  27. Row 7 / Column 1 → 8 (Full House)
  28. Row 8 / Column 6 → 6 (Full House)
  29. Row 5 / Column 1 → 1 (Naked Single)
  30. Row 6 / Column 2 → 6 (Full House)
  31. Row 4 / Column 7 → 1 (Hidden Single)
  32. Row 4 / Column 6 → 2 (Naked Single)
  33. Row 4 / Column 4 → 6 (Full House)
  34. Row 3 / Column 6 → 9 (Naked Single)
  35. Row 9 / Column 6 → 1 (Full House)
  36. Row 9 / Column 9 → 2 (Naked Single)
  37. Row 9 / Column 7 → 9 (Full House)
  38. Row 2 / Column 9 → 7 (Naked Single)
  39. Row 7 / Column 7 → 5 (Naked Single)
  40. Row 7 / Column 8 → 3 (Naked Single)
  41. Row 2 / Column 8 → 9 (Full House)
  42. Row 7 / Column 9 → 1 (Full House)
  43. Row 2 / Column 2 → 2 (Naked Single)
  44. Row 2 / Column 1 → 3 (Full House)
  45. Row 1 / Column 2 → 7 (Full House)
  46. Row 5 / Column 7 → 6 (Naked Single)
  47. Row 1 / Column 7 → 2 (Full House)
  48. Row 5 / Column 9 → 5 (Full House)
  49. Row 3 / Column 1 → 6 (Naked Single)
  50. Row 1 / Column 1 → 9 (Full House)
  51. Row 1 / Column 4 → 1 (Naked Single)
  52. Row 3 / Column 9 → 3 (Naked Single)
  53. Row 1 / Column 9 → 6 (Full House)
  54. Row 1 / Column 5 → 3 (Full House)
  55. Row 6 / Column 4 → 9 (Naked Single)
  56. Row 6 / Column 5 → 1 (Full House)
  57. Row 3 / Column 5 → 2 (Naked Single)
  58. Row 3 / Column 4 → 7 (Full House)
  59. Row 7 / Column 4 → 2 (Full House)
  60. Row 7 / Column 5 → 9 (Full House)
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