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

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

Naked Single Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

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