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

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