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

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

Try To Solve This Puzzle

Solution Steps:

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