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

This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Full House, Skyscraper techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 5 → 4 (Hidden Single)
2. Row 5 / Column 2 → 4 (Hidden Single)
3. Row 7 / Column 8 → 2 (Hidden Single)
4. Row 2 / Column 1 → 8 (Hidden Single)
5. Row 2 / Column 7 → 7 (Hidden Single)
6. Row 5 / Column 8 → 7 (Hidden Single)
7. Row 5 / Column 7 → 5 (Hidden Single)
8. Locked Candidates Type 1 (Pointing): 4 in b3 => r8c9<>4
9. Locked Candidates Type 1 (Pointing): 8 in b3 => r46c9<>8
10. Row 6 / Column 7 → 8 (Hidden Single)
11. Row 6 / Column 9 → 3 (Hidden Single)
12. Row 8 / Column 7 → 3 (Hidden Single)
13. Row 6 / Column 3 → 2 (Hidden Single)
14. Row 1 / Column 3 → 1 (Naked Single)
15. Row 2 / Column 3 → 6 (Naked Single)
16. Row 3 / Column 2 → 3 (Naked Single)
17. Row 1 / Column 2 → 2 (Full House)
18. Row 4 / Column 9 → 2 (Hidden Single)
19. Row 8 / Column 4 → 4 (Hidden Single)
20. Row 9 / Column 7 → 4 (Hidden Single)
21. Row 2 / Column 4 → 2 (Hidden Single)
22. Row 7 / Column 4 → 7 (Hidden Single)
23. Row 7 / Column 3 → 9 (Naked Single)
24. Row 7 / Column 7 → 1 (Naked Single)
25. Row 4 / Column 7 → 9 (Full House)
26. Skyscraper: 6 in r4c5,r5c9 (connected by r8c59) => r5c46<>6
27. Row 5 / Column 9 → 6 (Hidden Single)
28. Row 6 / Column 8 → 1 (Full House)
29. Row 6 / Column 1 → 6 (Full House)
30. Row 8 / Column 9 → 9 (Naked Single)
31. Row 9 / Column 8 → 6 (Full House)
32. Row 3 / Column 8 → 5 (Naked Single)
33. Row 1 / Column 8 → 9 (Full House)
34. Row 1 / Column 5 → 8 (Naked Single)
35. Row 1 / Column 4 → 3 (Naked Single)
36. Row 1 / Column 9 → 4 (Naked Single)
37. Row 1 / Column 6 → 5 (Full House)
38. Row 2 / Column 9 → 1 (Naked Single)
39. Row 3 / Column 9 → 8 (Full House)
40. Row 2 / Column 5 → 9 (Naked Single)
41. Row 2 / Column 6 → 4 (Full House)
42. Row 4 / Column 6 → 3 (Hidden Single)
43. Row 4 / Column 4 → 8 (Hidden Single)
44. Row 4 / Column 5 → 6 (Hidden Single)
45. Row 8 / Column 5 → 1 (Full House)
46. Row 8 / Column 1 → 5 (Naked Single)
47. Row 4 / Column 1 → 1 (Full House)
48. Row 9 / Column 4 → 9 (Naked Single)
49. Row 8 / Column 3 → 7 (Naked Single)
50. Row 4 / Column 3 → 5 (Full House)
51. Row 4 / Column 2 → 7 (Full House)
52. Row 8 / Column 2 → 6 (Full House)
53. Row 5 / Column 4 → 1 (Naked Single)
54. Row 3 / Column 4 → 6 (Full House)
55. Row 5 / Column 6 → 9 (Full House)
56. Row 3 / Column 6 → 1 (Full House)
57. Row 9 / Column 6 → 8 (Naked Single)
58. Row 7 / Column 6 → 6 (Full House)
59. Row 7 / Column 2 → 8 (Full House)
60. Row 9 / Column 2 → 1 (Full House)