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

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

Naked Single Explanation
Hidden Single Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

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