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

This Sudoku Puzzle has 39 steps and it is solved using Naked Single, Full House, Hidden Single, Skyscraper, undefined, Give Up techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 4 / Column 7 → 5 (Naked Single)
2. Row 3 / Column 8 → 5 (Naked Single)
3. Row 3 / Column 9 → 9 (Naked Single)
4. Row 3 / Column 6 → 3 (Naked Single)
5. Row 3 / Column 5 → 8 (Naked Single)
6. Row 3 / Column 4 → 4 (Full House)
7. Row 4 / Column 6 → 6 (Naked Single)
8. Row 9 / Column 6 → 1 (Naked Single)
9. Row 2 / Column 6 → 5 (Naked Single)
10. Row 7 / Column 6 → 9 (Full House)
11. Row 9 / Column 7 → 6 (Naked Single)
12. Row 7 / Column 3 → 2 (Naked Single)
13. Row 8 / Column 7 → 1 (Naked Single)
14. Row 5 / Column 7 → 9 (Full House)
15. Row 9 / Column 5 → 7 (Naked Single)
16. Row 9 / Column 3 → 4 (Naked Single)
17. Row 8 / Column 3 → 9 (Naked Single)
18. Row 9 / Column 2 → 8 (Naked Single)
19. Row 9 / Column 9 → 2 (Full House)
20. Row 4 / Column 2 → 4 (Hidden Single)
21. Row 1 / Column 4 → 9 (Hidden Single)
22. Row 6 / Column 5 → 3 (Hidden Single)
23. Row 6 / Column 1 → 9 (Naked Single)
24. Row 6 / Column 2 → 2 (Naked Single)
25. Row 5 / Column 2 → 6 (Naked Single)
26. Row 5 / Column 1 → 8 (Naked Single)
27. Row 8 / Column 2 → 3 (Naked Single)
28. Row 7 / Column 2 → 1 (Full House)
29. Row 7 / Column 1 → 6 (Full House)
30. Row 4 / Column 1 → 3 (Full House)
31. Row 8 / Column 8 → 8 (Naked Single)
32. Row 7 / Column 8 → 3 (Naked Single)
33. Row 7 / Column 9 → 5 (Naked Single)
34. Row 7 / Column 4 → 8 (Full House)
35. Row 8 / Column 9 → 4 (Full House)
36. Row 4 / Column 9 → 8 (Hidden Single)
37. Skyscraper: 1 in r1c5,r6c4 (connected by r16c9) => r2c4,r5c5<>1
38. XY-Wing: 2/5/7 in r4c4,r5c35 => r5c4<>7
39. Give Up: Don't know how to proceed!