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

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