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

This Sudoku Puzzle has 18 steps and it is solved using Naked Single, Full House techniques.

Naked Single Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

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