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

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

Try To Solve This Puzzle

Solution Steps:

  1. Row 2 / Column 2 → 8 (Naked Single)
  2. Row 2 / Column 3 → 1 (Naked Single)
  3. Row 3 / Column 5 → 9 (Naked Single)
  4. Row 6 / Column 6 → 6 (Naked Single)
  5. Row 3 / Column 2 → 4 (Hidden Single)
  6. Row 3 / Column 6 → 3 (Hidden Single)
  7. Row 9 / Column 9 → 8 (Hidden Single)
  8. Row 3 / Column 8 → 6 (Hidden Single)
  9. Row 8 / Column 3 → 9 (Hidden Single)
  10. Row 9 / Column 1 → 1 (Hidden Single)
  11. Row 5 / Column 7 → 6 (Hidden Single)
  12. Row 5 / Column 9 → 9 (Hidden Single)
  13. Row 1 / Column 7 → 9 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 7 in b2 => r1c9<>7
  15. Locked Candidates Type 1 (Pointing): 5 in b3 => r467c9<>5
  16. Locked Candidates Type 1 (Pointing): 3 in b6 => r4c13<>3
  17. Locked Candidates Type 1 (Pointing): 5 in b6 => r89c7<>5
  18. Locked Candidates Type 1 (Pointing): 7 in b8 => r7c89<>7
  19. Locked Candidates Type 2 (Claiming): 2 in c2 => r7c1,r9c3<>2
  20. Locked Candidates Type 2 (Claiming): 5 in c2 => r7c1,r9c3<>5
  21. Locked Candidates Type 2 (Claiming): 5 in r9 => r7c45<>5
  22. Locked Candidates Type 2 (Claiming): 7 in c9 => r46c7<>7
  23. Naked Pair: 1,2 in r1c6,r3c4 => r1c4<>1, r1c4<>2
  24. Naked Pair: 5,8 in r5c5,r6c4 => r4c4<>5
  25. XY-Wing: 3/6/5 in r59c3,r9c5 => r5c5<>5
  26. Row 5 / Column 5 → 8 (Naked Single)
  27. Row 1 / Column 5 → 7 (Naked Single)
  28. Row 6 / Column 4 → 5 (Naked Single)
  29. Row 1 / Column 4 → 8 (Naked Single)
  30. Row 7 / Column 5 → 6 (Naked Single)
  31. Row 9 / Column 5 → 5 (Full House)
  32. Row 6 / Column 7 → 4 (Naked Single)
  33. Row 9 / Column 4 → 2 (Naked Single)
  34. Row 7 / Column 1 → 3 (Naked Single)
  35. Row 6 / Column 3 → 2 (Naked Single)
  36. Row 6 / Column 9 → 7 (Naked Single)
  37. Row 6 / Column 1 → 8 (Full House)
  38. Row 3 / Column 4 → 1 (Naked Single)
  39. Row 1 / Column 6 → 2 (Full House)
  40. Row 9 / Column 6 → 4 (Naked Single)
  41. Row 9 / Column 7 → 3 (Naked Single)
  42. Row 9 / Column 3 → 6 (Full House)
  43. Row 5 / Column 1 → 5 (Naked Single)
  44. Row 5 / Column 3 → 3 (Full House)
  45. Row 7 / Column 8 → 5 (Naked Single)
  46. Row 7 / Column 9 → 4 (Naked Single)
  47. Row 4 / Column 9 → 3 (Naked Single)
  48. Row 4 / Column 7 → 5 (Full House)
  49. Row 3 / Column 9 → 5 (Naked Single)
  50. Row 3 / Column 1 → 2 (Full House)
  51. Row 1 / Column 9 → 1 (Full House)
  52. Row 4 / Column 4 → 9 (Naked Single)
  53. Row 4 / Column 6 → 1 (Full House)
  54. Row 7 / Column 6 → 9 (Full House)
  55. Row 7 / Column 4 → 7 (Full House)
  56. Row 7 / Column 2 → 2 (Full House)
  57. Row 8 / Column 2 → 5 (Full House)
  58. Row 2 / Column 7 → 7 (Naked Single)
  59. Row 2 / Column 8 → 3 (Full House)
  60. Row 8 / Column 8 → 7 (Full House)
  61. Row 8 / Column 7 → 2 (Full House)
  62. Row 1 / Column 3 → 5 (Naked Single)
  63. Row 1 / Column 1 → 6 (Full House)
  64. Row 4 / Column 1 → 7 (Full House)
  65. Row 4 / Column 3 → 4 (Full House)
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