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

This Sudoku Puzzle has 46 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), undefined, Give Up techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 2 / Column 8 → 3 (Naked Single)
2. Row 1 / Column 9 → 5 (Hidden Single)
3. Row 3 / Column 4 → 6 (Hidden Single)
4. Row 2 / Column 9 → 7 (Hidden Single)
5. Row 8 / Column 5 → 7 (Hidden Single)
6. Row 9 / Column 1 → 4 (Hidden Single)
7. Row 3 / Column 1 → 3 (Hidden Single)
8. Row 1 / Column 3 → 1 (Naked Single)
9. Row 7 / Column 3 → 6 (Naked Single)
10. Row 6 / Column 3 → 4 (Naked Single)
11. Row 4 / Column 3 → 3 (Full House)
12. Row 5 / Column 5 → 3 (Hidden Single)
13. Row 7 / Column 1 → 1 (Hidden Single)
14. Row 9 / Column 9 → 6 (Hidden Single)
15. Row 8 / Column 6 → 6 (Hidden Single)
16. Row 4 / Column 8 → 4 (Hidden Single)
17. Row 4 / Column 5 → 5 (Hidden Single)
18. Row 4 / Column 2 → 6 (Hidden Single)
19. Row 6 / Column 5 → 6 (Hidden Single)
20. Locked Candidates Type 1 (Pointing): 2 in b1 => r1c456<>2
21. Locked Candidates Type 1 (Pointing): 8 in b4 => r6c78<>8
22. Row 9 / Column 8 → 8 (Hidden Single)
23. Row 9 / Column 7 → 2 (Naked Single)
24. Row 7 / Column 9 → 9 (Full House)
25. Row 5 / Column 9 → 1 (Naked Single)
26. Row 3 / Column 9 → 8 (Naked Single)
27. Row 3 / Column 7 → 1 (Full House)
28. Row 4 / Column 9 → 2 (Full House)
29. Row 5 / Column 2 → 7 (Naked Single)
30. Row 6 / Column 7 → 7 (Naked Single)
31. Row 4 / Column 7 → 8 (Full House)
32. Row 4 / Column 6 → 1 (Naked Single)
33. Row 4 / Column 4 → 7 (Full House)
34. Row 1 / Column 2 → 2 (Naked Single)
35. Row 1 / Column 1 → 7 (Full House)
36. Row 5 / Column 1 → 5 (Naked Single)
37. Row 5 / Column 8 → 9 (Full House)
38. Row 6 / Column 8 → 5 (Full House)
39. Row 8 / Column 2 → 8 (Naked Single)
40. Row 6 / Column 2 → 1 (Full House)
41. Row 6 / Column 1 → 8 (Full House)
42. Row 8 / Column 1 → 2 (Full House)
43. W-Wing: 3/9 in r1c4,r9c6 connected by 9 in r6c46 => r1c6,r9c4<>3
44. Row 1 / Column 4 → 3 (Hidden Single)
45. Row 9 / Column 6 → 3 (Hidden Single)
46. Give Up: Don't know how to proceed!