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

This Sudoku Puzzle has 53 steps and it is solved using Naked Single, Hidden Single, Locked Pair, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 5 / Column 4 → 1 (Naked Single)
  2. Row 6 / Column 3 → 8 (Naked Single)
  3. Row 2 / Column 6 → 6 (Hidden Single)
  4. Row 7 / Column 9 → 8 (Hidden Single)
  5. Row 1 / Column 8 → 8 (Hidden Single)
  6. Locked Pair: 8,9 in r5c56 => r46c5,r5c18<>9
  7. Locked Pair: 1,2 in r9c78 => r8c79,r9c49<>2, r8c79,r9c69<>1
  8. Row 9 / Column 4 → 4 (Naked Single)
  9. Row 1 / Column 4 → 2 (Full House)
  10. Row 8 / Column 7 → 9 (Naked Single)
  11. Row 8 / Column 5 → 2 (Hidden Single)
  12. Row 1 / Column 6 → 4 (Hidden Single)
  13. Row 8 / Column 6 → 1 (Hidden Single)
  14. Row 1 / Column 5 → 5 (Hidden Single)
  15. Row 7 / Column 5 → 9 (Naked Single)
  16. Row 7 / Column 6 → 5 (Full House)
  17. Row 9 / Column 6 → 3 (Full House)
  18. Row 5 / Column 5 → 8 (Naked Single)
  19. Row 3 / Column 6 → 8 (Naked Single)
  20. Row 5 / Column 6 → 9 (Full House)
  21. Row 1 / Column 9 → 1 (Hidden Single)
  22. Row 2 / Column 7 → 2 (Naked Single)
  23. Row 9 / Column 7 → 1 (Full House)
  24. Row 3 / Column 9 → 3 (Naked Single)
  25. Row 2 / Column 9 → 9 (Full House)
  26. Row 9 / Column 8 → 2 (Naked Single)
  27. Row 3 / Column 5 → 1 (Naked Single)
  28. Row 2 / Column 5 → 3 (Full House)
  29. Row 3 / Column 3 → 2 (Full House)
  30. Row 6 / Column 9 → 4 (Naked Single)
  31. Row 5 / Column 8 → 3 (Naked Single)
  32. Row 2 / Column 2 → 8 (Naked Single)
  33. Row 4 / Column 3 → 3 (Naked Single)
  34. Row 4 / Column 9 → 2 (Naked Single)
  35. Row 6 / Column 5 → 6 (Naked Single)
  36. Row 4 / Column 5 → 4 (Full House)
  37. Row 4 / Column 8 → 9 (Naked Single)
  38. Row 4 / Column 1 → 6 (Full House)
  39. Row 6 / Column 8 → 1 (Full House)
  40. Row 6 / Column 1 → 9 (Full House)
  41. Row 5 / Column 3 → 5 (Naked Single)
  42. Row 5 / Column 1 → 2 (Full House)
  43. Row 2 / Column 1 → 4 (Naked Single)
  44. Row 2 / Column 3 → 1 (Full House)
  45. Row 8 / Column 3 → 4 (Full House)
  46. Row 9 / Column 2 → 6 (Naked Single)
  47. Row 1 / Column 1 → 3 (Naked Single)
  48. Row 1 / Column 2 → 9 (Full House)
  49. Row 8 / Column 2 → 3 (Full House)
  50. Row 9 / Column 9 → 5 (Naked Single)
  51. Row 8 / Column 9 → 6 (Full House)
  52. Row 8 / Column 1 → 5 (Full House)
  53. Row 9 / Column 1 → 8 (Full House)
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