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

This Sudoku Puzzle has 41 steps and it is solved using Naked Single, Full House, Hidden Single, undefined, Uniqueness Test 1, Give Up techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 2 / Column 7 → 8 (Naked Single)
  2. Row 4 / Column 9 → 1 (Naked Single)
  3. Row 3 / Column 6 → 6 (Naked Single)
  4. Row 7 / Column 7 → 5 (Naked Single)
  5. Row 6 / Column 7 → 3 (Naked Single)
  6. Row 5 / Column 7 → 4 (Full House)
  7. Row 5 / Column 8 → 8 (Naked Single)
  8. Row 6 / Column 8 → 5 (Full House)
  9. Row 5 / Column 6 → 1 (Naked Single)
  10. Row 1 / Column 6 → 8 (Naked Single)
  11. Row 8 / Column 6 → 5 (Full House)
  12. Row 5 / Column 5 → 6 (Naked Single)
  13. Row 4 / Column 2 → 5 (Hidden Single)
  14. Row 1 / Column 3 → 4 (Hidden Single)
  15. Row 8 / Column 8 → 4 (Hidden Single)
  16. Row 3 / Column 9 → 4 (Hidden Single)
  17. Row 7 / Column 3 → 2 (Hidden Single)
  18. Row 7 / Column 5 → 7 (Hidden Single)
  19. Row 9 / Column 8 → 3 (Hidden Single)
  20. Row 9 / Column 1 → 5 (Hidden Single)
  21. Row 4 / Column 4 → 3 (Hidden Single)
  22. Row 4 / Column 3 → 8 (Full House)
  23. Row 6 / Column 3 → 1 (Naked Single)
  24. Row 7 / Column 2 → 8 (Hidden Single)
  25. Row 7 / Column 8 → 1 (Hidden Single)
  26. Row 8 / Column 2 → 1 (Hidden Single)
  27. Row 8 / Column 5 → 9 (Full House)
  28. W-Wing: 7/9 in r1c8,r3c2 connected by 9 in r13c4 => r1c1,r3c8<>7
  29. Row 1 / Column 8 → 7 (Hidden Single)
  30. Row 5 / Column 1 → 7 (Hidden Single)
  31. Row 3 / Column 2 → 7 (Hidden Single)
  32. Uniqueness Test 1: 3/9 in r2c23,r5c23 => r2c3<>3, r2c3<>9
  33. Row 2 / Column 3 → 6 (Naked Single)
  34. Row 9 / Column 3 → 9 (Naked Single)
  35. Row 5 / Column 3 → 3 (Full House)
  36. Row 7 / Column 1 → 6 (Full House)
  37. Row 5 / Column 2 → 9 (Full House)
  38. Row 7 / Column 9 → 9 (Full House)
  39. Row 9 / Column 9 → 6 (Full House)
  40. Row 2 / Column 2 → 3 (Full House)
  41. Give Up: Don't know how to proceed!
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