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

This Sudoku Puzzle has 35 steps and it is solved using Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Naked Single techniques.

Naked Single Explanation
Hidden Single Explanation
Locked Candidates Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 6 / Column 6 → 1 (Hidden Single)
  2. Row 2 / Column 5 → 8 (Hidden Single)
  3. Row 3 / Column 7 → 8 (Hidden Single)
  4. Row 4 / Column 4 → 8 (Hidden Single)
  5. Row 4 / Column 6 → 3 (Full House)
  6. Locked Candidates Type 1 (Pointing): 6 in b2 => r6c4<>6
  7. Row 6 / Column 4 → 7 (Naked Single)
  8. Row 6 / Column 5 → 6 (Full House)
  9. Row 8 / Column 5 → 7 (Full House)
  10. Row 2 / Column 9 → 7 (Hidden Single)
  11. Row 1 / Column 7 → 3 (Naked Single)
  12. Row 1 / Column 4 → 4 (Naked Single)
  13. Row 3 / Column 9 → 4 (Naked Single)
  14. Row 8 / Column 7 → 6 (Naked Single)
  15. Row 9 / Column 7 → 7 (Full House)
  16. Row 1 / Column 6 → 7 (Naked Single)
  17. Row 3 / Column 8 → 6 (Naked Single)
  18. Row 3 / Column 4 → 3 (Full House)
  19. Row 2 / Column 4 → 6 (Full House)
  20. Row 9 / Column 9 → 1 (Naked Single)
  21. Row 8 / Column 9 → 3 (Full House)
  22. Row 7 / Column 8 → 4 (Full House)
  23. Row 8 / Column 6 → 4 (Naked Single)
  24. Row 8 / Column 1 → 1 (Full House)
  25. Row 9 / Column 3 → 8 (Naked Single)
  26. Row 2 / Column 1 → 9 (Naked Single)
  27. Row 1 / Column 3 → 1 (Naked Single)
  28. Row 2 / Column 3 → 3 (Full House)
  29. Row 1 / Column 1 → 8 (Full House)
  30. Row 2 / Column 8 → 1 (Full House)
  31. Row 1 / Column 8 → 9 (Full House)
  32. Row 7 / Column 1 → 6 (Naked Single)
  33. Row 7 / Column 6 → 8 (Full House)
  34. Row 9 / Column 6 → 6 (Full House)
  35. Row 9 / Column 1 → 4 (Full House)
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