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

This Sudoku Puzzle has 69 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Pair, Naked Single, Hidden Pair, Skyscraper, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 7 / Column 2 → 5 (Hidden Single)
  2. Row 3 / Column 8 → 5 (Hidden Single)
  3. Row 5 / Column 8 → 2 (Hidden Single)
  4. Row 6 / Column 6 → 2 (Hidden Single)
  5. Row 9 / Column 4 → 2 (Hidden Single)
  6. Locked Candidates Type 1 (Pointing): 9 in b4 => r6c79<>9
  7. Locked Candidates Type 1 (Pointing): 4 in b6 => r789c7<>4
  8. Locked Candidates Type 1 (Pointing): 1 in b9 => r23c7<>1
  9. Locked Candidates Type 1 (Pointing): 6 in b9 => r45c7<>6
  10. Naked Pair: 4,7 in r47c3 => r268c3<>4, r268c3<>7
  11. Row 8 / Column 3 → 2 (Naked Single)
  12. Hidden Pair: 3,6 in r4c1,r5c2 => r4c1<>4, r4c1,r5c2<>7, r5c2<>1
  13. Locked Candidates Type 1 (Pointing): 1 in b4 => r6c5<>1
  14. Hidden Pair: 4,5 in r46c7 => r46c7<>7, r46c7<>8
  15. Locked Candidates Type 1 (Pointing): 8 in b6 => r1c9<>8
  16. Hidden Pair: 1,6 in r78c7 => r78c7<>7, r78c7<>8
  17. Locked Candidates Type 1 (Pointing): 7 in b9 => r1c8<>7
  18. Skyscraper: 3 in r4c1,r5c4 (connected by r7c14) => r4c56,r5c2<>3
  19. Row 5 / Column 2 → 6 (Naked Single)
  20. Row 4 / Column 1 → 3 (Naked Single)
  21. Row 2 / Column 5 → 3 (Hidden Single)
  22. Row 9 / Column 2 → 3 (Hidden Single)
  23. Row 4 / Column 9 → 6 (Hidden Single)
  24. Row 6 / Column 9 → 8 (Hidden Single)
  25. Row 6 / Column 5 → 5 (Naked Single)
  26. Row 4 / Column 5 → 8 (Naked Single)
  27. Row 6 / Column 7 → 4 (Naked Single)
  28. Row 4 / Column 6 → 7 (Naked Single)
  29. Row 4 / Column 7 → 5 (Naked Single)
  30. Row 4 / Column 3 → 4 (Full House)
  31. Row 7 / Column 3 → 7 (Naked Single)
  32. Row 8 / Column 6 → 5 (Hidden Single)
  33. Row 1 / Column 2 → 4 (Hidden Single)
  34. Row 8 / Column 8 → 7 (Hidden Single)
  35. Row 2 / Column 6 → 4 (Hidden Single)
  36. Row 9 / Column 6 → 8 (Naked Single)
  37. Row 9 / Column 7 → 9 (Naked Single)
  38. Row 9 / Column 8 → 4 (Full House)
  39. Row 5 / Column 7 → 7 (Naked Single)
  40. Row 5 / Column 9 → 9 (Full House)
  41. Row 7 / Column 8 → 8 (Naked Single)
  42. Row 1 / Column 8 → 9 (Full House)
  43. Row 2 / Column 7 → 2 (Naked Single)
  44. Row 7 / Column 1 → 4 (Naked Single)
  45. Row 8 / Column 1 → 8 (Full House)
  46. Row 3 / Column 7 → 8 (Naked Single)
  47. Row 1 / Column 4 → 8 (Hidden Single)
  48. Row 3 / Column 6 → 9 (Hidden Single)
  49. Row 3 / Column 1 → 2 (Hidden Single)
  50. Row 8 / Column 4 → 4 (Hidden Single)
  51. Row 3 / Column 4 → 7 (Hidden Single)
  52. Row 3 / Column 2 → 1 (Naked Single)
  53. Row 3 / Column 5 → 6 (Full House)
  54. Row 6 / Column 2 → 7 (Full House)
  55. Row 1 / Column 6 → 1 (Full House)
  56. Row 8 / Column 5 → 1 (Full House)
  57. Row 8 / Column 7 → 6 (Full House)
  58. Row 7 / Column 7 → 1 (Full House)
  59. Row 2 / Column 3 → 9 (Naked Single)
  60. Row 6 / Column 3 → 1 (Full House)
  61. Row 6 / Column 1 → 9 (Full House)
  62. Row 1 / Column 9 → 7 (Naked Single)
  63. Row 1 / Column 1 → 6 (Full House)
  64. Row 2 / Column 1 → 7 (Full House)
  65. Row 2 / Column 9 → 1 (Full House)
  66. Row 5 / Column 6 → 3 (Naked Single)
  67. Row 5 / Column 4 → 1 (Full House)
  68. Row 7 / Column 4 → 3 (Full House)
  69. Row 7 / Column 6 → 6 (Full House)
Show More...