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

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