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

This Sudoku Puzzle has 64 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Naked Pair, Naked Triple, Swordfish, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 6 / Column 7 → 2 (Naked Single)
  2. Row 4 / Column 4 → 5 (Hidden Single)
  3. Row 2 / Column 1 → 7 (Hidden Single)
  4. Row 4 / Column 5 → 2 (Hidden Single)
  5. Row 9 / Column 5 → 6 (Naked Single)
  6. Row 9 / Column 4 → 2 (Naked Single)
  7. Row 4 / Column 8 → 9 (Hidden Single)
  8. Row 6 / Column 5 → 9 (Hidden Single)
  9. Locked Candidates Type 1 (Pointing): 2 in b3 => r78c8<>2
  10. Locked Candidates Type 1 (Pointing): 3 in b5 => r5c28<>3
  11. Locked Candidates Type 1 (Pointing): 6 in b5 => r5c28<>6
  12. Locked Candidates Type 1 (Pointing): 7 in b5 => r5c8<>7
  13. Naked Pair: 1,8 in r4c7,r5c8 => r4c9<>1, r4c9<>8
  14. Naked Pair: 3,6 in r4c19 => r4c3<>3, r4c3<>6
  15. Naked Triple: 3,4,6 in r146c1 => r7c1<>3, r8c1<>4, r8c1<>6
  16. Swordfish: 1 r135 c248 => r2c48,r7c48,r8c8<>1
  17. Row 8 / Column 5 → 1 (Hidden Single)
  18. Row 2 / Column 5 → 3 (Naked Single)
  19. Row 5 / Column 5 → 7 (Full House)
  20. Row 5 / Column 4 → 6 (Naked Single)
  21. Row 5 / Column 6 → 3 (Full House)
  22. Row 7 / Column 9 → 1 (Hidden Single)
  23. Row 7 / Column 1 → 2 (Hidden Single)
  24. Row 8 / Column 1 → 5 (Naked Single)
  25. Row 8 / Column 7 → 8 (Naked Single)
  26. Row 4 / Column 7 → 1 (Naked Single)
  27. Row 2 / Column 7 → 5 (Full House)
  28. Row 9 / Column 9 → 3 (Naked Single)
  29. Row 4 / Column 3 → 8 (Naked Single)
  30. Row 5 / Column 8 → 8 (Naked Single)
  31. Row 5 / Column 2 → 1 (Full House)
  32. Row 4 / Column 9 → 6 (Naked Single)
  33. Row 4 / Column 1 → 3 (Full House)
  34. Row 7 / Column 3 → 3 (Naked Single)
  35. Row 2 / Column 8 → 6 (Naked Single)
  36. Row 3 / Column 2 → 6 (Naked Single)
  37. Row 2 / Column 9 → 8 (Naked Single)
  38. Row 6 / Column 9 → 7 (Naked Single)
  39. Row 6 / Column 8 → 3 (Full House)
  40. Row 8 / Column 9 → 2 (Full House)
  41. Row 2 / Column 6 → 9 (Naked Single)
  42. Row 1 / Column 1 → 4 (Naked Single)
  43. Row 6 / Column 1 → 6 (Full House)
  44. Row 6 / Column 3 → 4 (Full House)
  45. Row 2 / Column 4 → 4 (Naked Single)
  46. Row 2 / Column 3 → 1 (Full House)
  47. Row 1 / Column 2 → 3 (Full House)
  48. Row 8 / Column 3 → 6 (Full House)
  49. Row 8 / Column 6 → 7 (Naked Single)
  50. Row 1 / Column 4 → 1 (Naked Single)
  51. Row 3 / Column 6 → 2 (Naked Single)
  52. Row 7 / Column 4 → 9 (Naked Single)
  53. Row 3 / Column 4 → 7 (Full House)
  54. Row 1 / Column 6 → 6 (Full House)
  55. Row 1 / Column 8 → 2 (Full House)
  56. Row 3 / Column 8 → 1 (Full House)
  57. Row 8 / Column 8 → 4 (Naked Single)
  58. Row 8 / Column 2 → 9 (Full House)
  59. Row 7 / Column 2 → 8 (Naked Single)
  60. Row 9 / Column 2 → 4 (Full House)
  61. Row 9 / Column 8 → 5 (Naked Single)
  62. Row 7 / Column 8 → 7 (Full House)
  63. Row 7 / Column 6 → 5 (Full House)
  64. Row 9 / Column 6 → 8 (Full House)
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