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

This Sudoku Puzzle has 28 steps and it is solved using Hidden Single, Naked Single, Full House techniques.

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

Solution Steps:

  1. Row 3 / Column 9 → 4 (Hidden Single)
  2. Row 3 / Column 4 → 8 (Naked Single)
  3. Row 4 / Column 4 → 2 (Naked Single)
  4. Row 4 / Column 5 → 8 (Full House)
  5. Row 8 / Column 4 → 1 (Naked Single)
  6. Row 1 / Column 4 → 4 (Naked Single)
  7. Row 2 / Column 4 → 6 (Full House)
  8. Row 8 / Column 9 → 2 (Naked Single)
  9. Row 8 / Column 5 → 7 (Naked Single)
  10. Row 8 / Column 6 → 8 (Full House)
  11. Row 9 / Column 9 → 5 (Naked Single)
  12. Row 7 / Column 9 → 1 (Full House)
  13. Row 2 / Column 9 → 8 (Full House)
  14. Row 3 / Column 5 → 9 (Naked Single)
  15. Row 3 / Column 6 → 7 (Full House)
  16. Row 9 / Column 6 → 2 (Naked Single)
  17. Row 9 / Column 5 → 4 (Full House)
  18. Row 2 / Column 2 → 9 (Naked Single)
  19. Row 1 / Column 2 → 8 (Full House)
  20. Row 1 / Column 5 → 1 (Naked Single)
  21. Row 1 / Column 7 → 9 (Full House)
  22. Row 2 / Column 7 → 1 (Full House)
  23. Row 6 / Column 5 → 6 (Naked Single)
  24. Row 6 / Column 6 → 9 (Full House)
  25. Row 2 / Column 6 → 5 (Naked Single)
  26. Row 2 / Column 5 → 2 (Full House)
  27. Row 7 / Column 5 → 5 (Full House)
  28. Row 7 / Column 6 → 6 (Full House)
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