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

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

Naked Single Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 4 / Column 2 → 9 (Naked Single)
  2. Row 2 / Column 2 → 5 (Full House)
  3. Row 4 / Column 6 → 1 (Full House)
  4. Row 4 / Column 8 → 1 (Full House)
  5. Row 6 / Column 1 → 5 (Full House)
  6. Row 2 / Column 7 → 9 (Full House)
  7. Row 6 / Column 8 → 9 (Naked Single)
  8. Row 6 / Column 4 → 7 (Full House)
  9. Row 6 / Column 6 → 7 (Full House)
  10. Row 8 / Column 4 → 9 (Full House)
  11. Row 8 / Column 6 → 9 (Full House)
  12. Row 3 / Column 9 → 4 (Naked Single)
  13. Row 3 / Column 7 → 5 (Full House)
  14. Row 7 / Column 9 → 9 (Full House)
  15. Row 7 / Column 7 → 4 (Full House)
  16. Row 5 / Column 7 → 8 (Full House)
  17. Row 5 / Column 6 → 5 (Full House)
  18. Give Up: Don't know how to proceed!
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