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

This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Locked Candidates Type 2 (Claiming), Naked Triple techniques.

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

Solution Steps:

  1. Row 3 / Column 1 → 3 (Hidden Single)
  2. Row 2 / Column 9 → 6 (Hidden Single)
  3. Row 6 / Column 8 → 6 (Hidden Single)
  4. Row 6 / Column 3 → 7 (Hidden Single)
  5. Row 8 / Column 3 → 3 (Hidden Single)
  6. Row 9 / Column 2 → 6 (Hidden Single)
  7. Row 2 / Column 1 → 2 (Hidden Single)
  8. Row 2 / Column 7 → 4 (Hidden Single)
  9. Row 9 / Column 7 → 3 (Naked Single)
  10. Row 1 / Column 3 → 4 (Hidden Single)
  11. Row 7 / Column 4 → 3 (Hidden Single)
  12. Row 7 / Column 9 → 7 (Hidden Single)
  13. Row 7 / Column 8 → 9 (Hidden Single)
  14. Row 1 / Column 8 → 5 (Naked Single)
  15. Row 3 / Column 9 → 9 (Full House)
  16. Locked Candidates Type 1 (Pointing): 5 in b1 => r4c2<>5
  17. Locked Candidates Type 1 (Pointing): 2 in b6 => r89c9<>2
  18. Row 9 / Column 9 → 4 (Naked Single)
  19. Locked Candidates Type 1 (Pointing): 8 in b7 => r46c1<>8
  20. Locked Candidates Type 1 (Pointing): 8 in b4 => r4c46<>8
  21. Naked Pair: 1,9 in r6c17 => r6c49<>1, r6c46<>9
  22. Naked Pair: 1,9 in r16c1 => r45c1<>1, r45c1<>9
  23. Locked Candidates Type 2 (Claiming): 9 in r5 => r4c46<>9
  24. Naked Pair: 1,5 in r58c9 => r4c9<>1, r4c9<>5
  25. Naked Pair: 2,3 in r4c69 => r4c4<>2
  26. Naked Triple: 2,3,8 in r469c6 => r238c6<>8, r38c6<>2
  27. Row 3 / Column 6 → 5 (Naked Single)
  28. Row 3 / Column 2 → 8 (Naked Single)
  29. Row 3 / Column 5 → 2 (Full House)
  30. Row 2 / Column 3 → 9 (Naked Single)
  31. Row 4 / Column 3 → 8 (Full House)
  32. Row 4 / Column 2 → 1 (Naked Single)
  33. Row 1 / Column 1 → 1 (Naked Single)
  34. Row 2 / Column 6 → 7 (Naked Single)
  35. Row 1 / Column 2 → 7 (Naked Single)
  36. Row 1 / Column 4 → 9 (Full House)
  37. Row 2 / Column 2 → 5 (Full House)
  38. Row 4 / Column 4 → 6 (Naked Single)
  39. Row 6 / Column 1 → 9 (Naked Single)
  40. Row 8 / Column 6 → 4 (Naked Single)
  41. Row 4 / Column 1 → 5 (Naked Single)
  42. Row 5 / Column 1 → 6 (Full House)
  43. Row 5 / Column 4 → 1 (Naked Single)
  44. Row 6 / Column 7 → 1 (Naked Single)
  45. Row 5 / Column 6 → 9 (Naked Single)
  46. Row 7 / Column 5 → 8 (Naked Single)
  47. Row 7 / Column 1 → 4 (Full House)
  48. Row 8 / Column 1 → 8 (Full House)
  49. Row 4 / Column 7 → 9 (Naked Single)
  50. Row 8 / Column 7 → 5 (Full House)
  51. Row 2 / Column 4 → 8 (Naked Single)
  52. Row 2 / Column 5 → 1 (Full House)
  53. Row 5 / Column 5 → 4 (Naked Single)
  54. Row 5 / Column 9 → 5 (Full House)
  55. Row 8 / Column 5 → 6 (Full House)
  56. Row 9 / Column 6 → 2 (Naked Single)
  57. Row 8 / Column 4 → 7 (Full House)
  58. Row 6 / Column 4 → 2 (Full House)
  59. Row 9 / Column 8 → 8 (Full House)
  60. Row 8 / Column 8 → 2 (Full House)
  61. Row 8 / Column 9 → 1 (Full House)
  62. Row 4 / Column 6 → 3 (Naked Single)
  63. Row 4 / Column 9 → 2 (Full House)
  64. Row 6 / Column 9 → 3 (Full House)
  65. Row 6 / Column 6 → 8 (Full House)
Show More...