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

This Sudoku Puzzle has 20 steps and it is solved using Naked Single, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

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