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

This Sudoku Puzzle has 43 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Hidden Pair techniques.

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

Solution Steps:

  1. Row 6 / Column 8 → 9 (Naked Single)
  2. Row 4 / Column 6 → 1 (Naked Single)
  3. Row 6 / Column 7 → 2 (Naked Single)
  4. Row 4 / Column 3 → 2 (Naked Single)
  5. Row 6 / Column 2 → 1 (Full House)
  6. Row 4 / Column 4 → 9 (Naked Single)
  7. Row 3 / Column 8 → 7 (Hidden Single)
  8. Row 4 / Column 8 → 4 (Naked Single)
  9. Row 4 / Column 9 → 7 (Full House)
  10. Row 7 / Column 8 → 5 (Naked Single)
  11. Row 9 / Column 8 → 1 (Full House)
  12. Row 7 / Column 7 → 7 (Hidden Single)
  13. Row 6 / Column 6 → 8 (Hidden Single)
  14. Row 6 / Column 4 → 5 (Full House)
  15. Row 1 / Column 4 → 1 (Hidden Single)
  16. Row 2 / Column 7 → 1 (Hidden Single)
  17. Locked Candidates Type 1 (Pointing): 9 in b7 => r2c1<>9
  18. Row 2 / Column 1 → 5 (Naked Single)
  19. Row 1 / Column 3 → 4 (Naked Single)
  20. Row 2 / Column 6 → 4 (Naked Single)
  21. Row 1 / Column 7 → 9 (Naked Single)
  22. Row 1 / Column 9 → 6 (Full House)
  23. Row 2 / Column 9 → 6 (Full House)
  24. Row 9 / Column 7 → 4 (Full House)
  25. Row 3 / Column 6 → 2 (Naked Single)
  26. Row 1 / Column 6 → 5 (Full House)
  27. Row 1 / Column 2 → 2 (Full House)
  28. Row 2 / Column 2 → 9 (Naked Single)
  29. Row 3 / Column 2 → 8 (Full House)
  30. Row 3 / Column 1 → 1 (Full House)
  31. Row 7 / Column 2 → 8 (Full House)
  32. Row 3 / Column 3 → 1 (Full House)
  33. Row 7 / Column 9 → 2 (Naked Single)
  34. Row 8 / Column 3 → 1 (Naked Single)
  35. Row 9 / Column 3 → 5 (Naked Single)
  36. Row 7 / Column 4 → 4 (Naked Single)
  37. Hidden Pair: 1,2 in r8c14 => r8c1<>9, r8c4<>8
  38. Row 8 / Column 1 → 2 (Naked Single)
  39. Row 9 / Column 1 → 9 (Full House)
  40. Row 8 / Column 4 → 2 (Naked Single)
  41. Row 9 / Column 9 → 8 (Full House)
  42. Row 9 / Column 4 → 8 (Full House)
  43. Row 8 / Column 9 → 9 (Full House)
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