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

This Sudoku Puzzle has 31 steps and it is solved using Full House, Hidden Single, Naked Single, Hidden Pair techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 5 / Column 9 → 8 (Full House)
  2. Row 3 / Column 3 → 4 (Hidden Single)
  3. Row 4 / Column 3 → 8 (Hidden Single)
  4. Row 9 / Column 6 → 8 (Hidden Single)
  5. Row 8 / Column 4 → 5 (Naked Single)
  6. Row 7 / Column 4 → 9 (Naked Single)
  7. Row 7 / Column 3 → 5 (Full House)
  8. Row 9 / Column 4 → 4 (Full House)
  9. Row 8 / Column 3 → 6 (Naked Single)
  10. Row 1 / Column 3 → 9 (Full House)
  11. Row 8 / Column 2 → 8 (Full House)
  12. Row 1 / Column 4 → 7 (Naked Single)
  13. Row 4 / Column 4 → 2 (Full House)
  14. Row 6 / Column 4 → 2 (Full House)
  15. Row 3 / Column 2 → 7 (Naked Single)
  16. Row 3 / Column 7 → 9 (Full House)
  17. Row 2 / Column 7 → 7 (Full House)
  18. Row 2 / Column 6 → 9 (Full House)
  19. Row 1 / Column 6 → 4 (Full House)
  20. Row 9 / Column 2 → 9 (Naked Single)
  21. Row 9 / Column 1 → 7 (Full House)
  22. Hidden Pair: 2,5 in r6c12 => r6c12<>6, r6c1<>9
  23. Row 6 / Column 1 → 5 (Naked Single)
  24. Row 6 / Column 2 → 5 (Naked Single)
  25. Row 1 / Column 1 → 6 (Full House)
  26. Row 1 / Column 2 → 6 (Full House)
  27. Row 4 / Column 1 → 9 (Full House)
  28. Row 4 / Column 9 → 7 (Naked Single)
  29. Row 4 / Column 6 → 6 (Full House)
  30. Row 6 / Column 6 → 7 (Full House)
  31. Row 6 / Column 9 → 9 (Naked Single)
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