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

This Sudoku Puzzle has 62 steps and it is solved using Hidden Single, Naked Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), 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 3 / Column 6 → 4 (Hidden Single)
  2. Row 1 / Column 1 → 8 (Hidden Single)
  3. Row 5 / Column 7 → 3 (Hidden Single)
  4. Row 5 / Column 6 → 8 (Hidden Single)
  5. Row 7 / Column 4 → 4 (Hidden Single)
  6. Row 7 / Column 3 → 8 (Hidden Single)
  7. Row 8 / Column 9 → 3 (Hidden Single)
  8. Row 3 / Column 7 → 7 (Hidden Single)
  9. Row 2 / Column 2 → 5 (Hidden Single)
  10. Row 1 / Column 4 → 3 (Hidden Single)
  11. Row 8 / Column 3 → 6 (Hidden Single)
  12. Row 3 / Column 9 → 2 (Hidden Single)
  13. Row 4 / Column 9 → 5 (Naked Single)
  14. Row 7 / Column 8 → 6 (Hidden Single)
  15. Row 1 / Column 8 → 5 (Hidden Single)
  16. Locked Candidates Type 1 (Pointing): 5 in b8 => r6c6<>5
  17. Locked Candidates Type 1 (Pointing): 1 in b9 => r9c12<>1
  18. Locked Candidates Type 2 (Claiming): 2 in c4 => r45c5,r6c6<>2
  19. Locked Candidates Type 2 (Claiming): 7 in c4 => r45c5,r6c6<>7
  20. Row 4 / Column 5 → 6 (Naked Single)
  21. Row 3 / Column 2 → 6 (Hidden Single)
  22. Row 3 / Column 1 → 1 (Full House)
  23. Row 7 / Column 1 → 2 (Naked Single)
  24. Row 7 / Column 6 → 9 (Naked Single)
  25. Row 6 / Column 6 → 1 (Naked Single)
  26. Row 7 / Column 5 → 3 (Naked Single)
  27. Row 7 / Column 2 → 1 (Full House)
  28. Row 5 / Column 5 → 9 (Naked Single)
  29. Row 6 / Column 9 → 9 (Naked Single)
  30. Row 1 / Column 9 → 1 (Full House)
  31. Row 6 / Column 7 → 2 (Naked Single)
  32. Row 1 / Column 5 → 2 (Naked Single)
  33. Row 2 / Column 8 → 8 (Naked Single)
  34. Row 6 / Column 8 → 7 (Naked Single)
  35. Row 1 / Column 6 → 6 (Naked Single)
  36. Row 1 / Column 7 → 9 (Full House)
  37. Row 2 / Column 7 → 6 (Full House)
  38. Row 9 / Column 5 → 7 (Naked Single)
  39. Row 2 / Column 5 → 1 (Full House)
  40. Row 2 / Column 6 → 7 (Full House)
  41. Row 4 / Column 8 → 4 (Naked Single)
  42. Row 6 / Column 4 → 5 (Naked Single)
  43. Row 6 / Column 1 → 6 (Full House)
  44. Row 8 / Column 7 → 4 (Naked Single)
  45. Row 9 / Column 3 → 5 (Naked Single)
  46. Row 5 / Column 3 → 7 (Full House)
  47. Row 4 / Column 2 → 2 (Naked Single)
  48. Row 4 / Column 7 → 8 (Naked Single)
  49. Row 5 / Column 8 → 1 (Full House)
  50. Row 9 / Column 7 → 1 (Full House)
  51. Row 4 / Column 4 → 7 (Full House)
  52. Row 5 / Column 4 → 2 (Full House)
  53. Row 8 / Column 2 → 9 (Naked Single)
  54. Row 8 / Column 1 → 7 (Naked Single)
  55. Row 9 / Column 1 → 4 (Naked Single)
  56. Row 5 / Column 1 → 5 (Full House)
  57. Row 5 / Column 2 → 4 (Full House)
  58. Row 9 / Column 2 → 3 (Full House)
  59. Row 9 / Column 6 → 2 (Naked Single)
  60. Row 8 / Column 6 → 5 (Full House)
  61. Row 8 / Column 8 → 2 (Full House)
  62. Row 9 / Column 8 → 9 (Full House)
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