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

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