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

This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Full House, Hidden Single, Skyscraper techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 2 → 6 (Naked Single)
2. Row 4 / Column 1 → 1 (Naked Single)
3. Row 4 / Column 2 → 8 (Naked Single)
4. Row 5 / Column 1 → 5 (Naked Single)
5. Row 1 / Column 1 → 6 (Naked Single)
6. Row 5 / Column 3 → 3 (Naked Single)
7. Row 6 / Column 3 → 4 (Full House)
8. Row 3 / Column 1 → 7 (Naked Single)
9. Row 7 / Column 3 → 1 (Naked Single)
10. Row 2 / Column 2 → 1 (Naked Single)
11. Row 9 / Column 3 → 6 (Naked Single)
12. Row 1 / Column 2 → 9 (Naked Single)
13. Row 8 / Column 2 → 7 (Full House)
14. Row 8 / Column 3 → 9 (Naked Single)
15. Row 3 / Column 3 → 8 (Naked Single)
16. Row 1 / Column 3 → 5 (Full House)
17. Row 2 / Column 7 → 5 (Hidden Single)
18. Row 5 / Column 7 → 9 (Hidden Single)
19. Row 8 / Column 5 → 5 (Hidden Single)
20. Row 6 / Column 6 → 5 (Hidden Single)
21. Row 6 / Column 9 → 3 (Hidden Single)
22. Row 3 / Column 5 → 9 (Hidden Single)
23. Row 2 / Column 8 → 7 (Hidden Single)
24. Row 6 / Column 8 → 2 (Naked Single)
25. Row 6 / Column 4 → 7 (Full House)
26. Row 4 / Column 8 → 6 (Naked Single)
27. Row 5 / Column 4 → 1 (Naked Single)
28. Row 5 / Column 8 → 8 (Naked Single)
29. Row 5 / Column 9 → 7 (Full House)
30. Row 5 / Column 5 → 6 (Full House)
31. Row 2 / Column 5 → 4 (Naked Single)
32. Row 2 / Column 4 → 8 (Naked Single)
33. Row 2 / Column 6 → 6 (Full House)
34. Row 4 / Column 4 → 9 (Hidden Single)
35. Row 9 / Column 6 → 8 (Hidden Single)
36. Skyscraper: 1 in r3c6,r9c5 (connected by r39c9) => r1c5,r8c6<>1
37. Row 9 / Column 5 → 1 (Hidden Single)
38. Row 3 / Column 6 → 1 (Hidden Single)
39. Row 9 / Column 7 → 7 (Hidden Single)
40. Row 7 / Column 5 → 7 (Hidden Single)
41. Row 9 / Column 4 → 3 (Hidden Single)
42. Row 1 / Column 4 → 2 (Naked Single)
43. Row 1 / Column 5 → 3 (Full House)
44. Row 8 / Column 4 → 4 (Full House)
45. Row 8 / Column 6 → 2 (Full House)
46. Row 4 / Column 5 → 2 (Full House)
47. Row 4 / Column 6 → 3 (Full House)
48. Row 1 / Column 7 → 8 (Naked Single)
49. Row 8 / Column 8 → 1 (Naked Single)
50. Row 1 / Column 8 → 4 (Full House)
51. Row 1 / Column 9 → 1 (Full House)
52. Row 7 / Column 7 → 2 (Naked Single)
53. Row 8 / Column 9 → 6 (Naked Single)
54. Row 8 / Column 7 → 3 (Full House)
55. Row 3 / Column 7 → 6 (Full House)
56. Row 3 / Column 9 → 2 (Full House)
57. Row 7 / Column 1 → 4 (Naked Single)
58. Row 7 / Column 9 → 8 (Full House)
59. Row 9 / Column 9 → 4 (Full House)
60. Row 9 / Column 1 → 2 (Full House)