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

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