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

This Sudoku Puzzle has 59 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Locked Candidates Type 2 (Claiming), Naked Single, Naked Pair, Locked Pair, Full House 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 1 / Column 8 → 6 (Hidden Single)
  2. Row 9 / Column 2 → 6 (Hidden Single)
  3. Row 9 / Column 5 → 8 (Hidden Single)
  4. Row 7 / Column 6 → 9 (Hidden Single)
  5. Row 8 / Column 1 → 3 (Hidden Single)
  6. Row 7 / Column 4 → 7 (Hidden Single)
  7. Row 6 / Column 1 → 2 (Hidden Single)
  8. Row 2 / Column 6 → 7 (Hidden Single)
  9. Row 2 / Column 4 → 6 (Hidden Single)
  10. Row 5 / Column 6 → 6 (Hidden Single)
  11. Locked Candidates Type 1 (Pointing): 3 in b2 => r3c89<>3
  12. Naked Triple: 1,3,4 in r8c7,r9c89 => r7c8,r8c9<>1, r8c9<>4
  13. Locked Candidates Type 2 (Claiming): 1 in r7 => r89c3<>1
  14. Row 9 / Column 3 → 2 (Naked Single)
  15. Naked Pair: 1,4 in r59c4 => r348c4<>4, r48c4<>1
  16. Row 8 / Column 4 → 2 (Naked Single)
  17. Naked Triple: 1,3,4 in r268c7 => r14c7<>1, r4c7<>3, r4c7<>4
  18. Locked Candidates Type 1 (Pointing): 1 in b3 => r2c13<>1
  19. Locked Pair: 5,8 in r2c13 => r1c12,r2c9,r3c2<>5
  20. Row 1 / Column 5 → 5 (Hidden Single)
  21. Row 3 / Column 4 → 3 (Naked Single)
  22. Row 4 / Column 4 → 5 (Naked Single)
  23. Row 6 / Column 6 → 3 (Hidden Single)
  24. Row 2 / Column 7 → 3 (Hidden Single)
  25. Row 2 / Column 9 → 1 (Naked Single)
  26. Row 8 / Column 6 → 1 (Hidden Single)
  27. Row 9 / Column 4 → 4 (Full House)
  28. Row 5 / Column 4 → 1 (Full House)
  29. Row 8 / Column 7 → 4 (Naked Single)
  30. Row 9 / Column 9 → 3 (Naked Single)
  31. Row 9 / Column 8 → 1 (Full House)
  32. Row 6 / Column 7 → 1 (Naked Single)
  33. Row 6 / Column 8 → 8 (Naked Single)
  34. Row 5 / Column 9 → 4 (Naked Single)
  35. Row 5 / Column 1 → 8 (Full House)
  36. Row 7 / Column 8 → 5 (Naked Single)
  37. Row 8 / Column 9 → 8 (Full House)
  38. Row 8 / Column 3 → 5 (Full House)
  39. Row 4 / Column 9 → 9 (Naked Single)
  40. Row 3 / Column 9 → 5 (Full House)
  41. Row 2 / Column 1 → 5 (Naked Single)
  42. Row 2 / Column 3 → 8 (Full House)
  43. Row 3 / Column 8 → 2 (Naked Single)
  44. Row 1 / Column 7 → 9 (Full House)
  45. Row 4 / Column 7 → 2 (Full House)
  46. Row 4 / Column 8 → 3 (Full House)
  47. Row 7 / Column 1 → 1 (Naked Single)
  48. Row 1 / Column 1 → 4 (Full House)
  49. Row 7 / Column 2 → 8 (Full House)
  50. Row 6 / Column 3 → 7 (Naked Single)
  51. Row 4 / Column 3 → 1 (Full House)
  52. Row 3 / Column 6 → 4 (Naked Single)
  53. Row 1 / Column 6 → 2 (Full House)
  54. Row 1 / Column 2 → 1 (Full House)
  55. Row 3 / Column 2 → 9 (Full House)
  56. Row 6 / Column 5 → 4 (Naked Single)
  57. Row 4 / Column 5 → 7 (Full House)
  58. Row 4 / Column 2 → 4 (Full House)
  59. Row 6 / Column 2 → 5 (Full House)
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