Solution for Hard Sudoku #2169318245714

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

This Sudoku Puzzle has 51 steps and it is solved using Naked Single, Full House techniques.

Naked Single Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 3 / Column 7 → 3 (Naked Single)
  2. Row 5 / Column 3 → 2 (Naked Single)
  3. Row 2 / Column 9 → 9 (Naked Single)
  4. Row 3 / Column 6 → 8 (Naked Single)
  5. Row 4 / Column 1 → 9 (Naked Single)
  6. Row 2 / Column 8 → 8 (Naked Single)
  7. Row 1 / Column 8 → 7 (Full House)
  8. Row 4 / Column 8 → 4 (Naked Single)
  9. Row 5 / Column 1 → 7 (Naked Single)
  10. Row 3 / Column 1 → 2 (Naked Single)
  11. Row 3 / Column 2 → 7 (Full House)
  12. Row 6 / Column 2 → 4 (Naked Single)
  13. Row 5 / Column 2 → 1 (Full House)
  14. Row 2 / Column 1 → 3 (Naked Single)
  15. Row 2 / Column 2 → 6 (Naked Single)
  16. Row 8 / Column 1 → 5 (Naked Single)
  17. Row 1 / Column 1 → 8 (Full House)
  18. Row 1 / Column 3 → 5 (Naked Single)
  19. Row 7 / Column 3 → 6 (Full House)
  20. Row 1 / Column 2 → 9 (Full House)
  21. Row 2 / Column 6 → 1 (Naked Single)
  22. Row 2 / Column 4 → 2 (Full House)
  23. Row 8 / Column 2 → 2 (Naked Single)
  24. Row 9 / Column 2 → 8 (Full House)
  25. Row 4 / Column 6 → 6 (Naked Single)
  26. Row 8 / Column 8 → 3 (Naked Single)
  27. Row 1 / Column 6 → 3 (Naked Single)
  28. Row 1 / Column 5 → 6 (Full House)
  29. Row 4 / Column 4 → 1 (Naked Single)
  30. Row 4 / Column 5 → 2 (Full House)
  31. Row 9 / Column 5 → 3 (Naked Single)
  32. Row 6 / Column 5 → 9 (Naked Single)
  33. Row 5 / Column 5 → 4 (Full House)
  34. Row 5 / Column 6 → 5 (Naked Single)
  35. Row 5 / Column 8 → 9 (Naked Single)
  36. Row 6 / Column 6 → 7 (Naked Single)
  37. Row 8 / Column 6 → 4 (Full House)
  38. Row 5 / Column 7 → 6 (Naked Single)
  39. Row 9 / Column 7 → 9 (Full House)
  40. Row 9 / Column 8 → 5 (Naked Single)
  41. Row 7 / Column 8 → 2 (Full House)
  42. Row 6 / Column 4 → 3 (Naked Single)
  43. Row 5 / Column 4 → 8 (Full House)
  44. Row 5 / Column 9 → 3 (Full House)
  45. Row 6 / Column 9 → 5 (Full House)
  46. Row 7 / Column 9 → 7 (Naked Single)
  47. Row 7 / Column 4 → 5 (Full House)
  48. Row 9 / Column 4 → 6 (Naked Single)
  49. Row 8 / Column 4 → 7 (Full House)
  50. Row 8 / Column 9 → 6 (Full House)
  51. Row 9 / Column 9 → 1 (Full House)
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