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

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

Try To Solve This Puzzle

## Solution Steps:

1. Row 9 / Column 5 → 8 (Naked Single)
2. Row 9 / Column 4 → 6 (Naked Single)
3. Row 7 / Column 4 → 4 (Naked Single)
4. Row 7 / Column 6 → 7 (Naked Single)
5. Row 4 / Column 8 → 9 (Hidden Single)
6. Row 9 / Column 9 → 9 (Hidden Single)
7. Row 9 / Column 1 → 3 (Full House)
8. Row 8 / Column 2 → 1 (Naked Single)
9. Row 7 / Column 2 → 9 (Naked Single)
10. Row 7 / Column 3 → 6 (Naked Single)
11. Row 2 / Column 2 → 2 (Naked Single)
12. Row 3 / Column 2 → 3 (Full House)
13. Row 7 / Column 1 → 8 (Naked Single)
14. Row 7 / Column 7 → 1 (Full House)
15. Row 3 / Column 3 → 1 (Naked Single)
16. Row 1 / Column 3 → 7 (Naked Single)
17. Row 8 / Column 3 → 4 (Naked Single)
18. Row 4 / Column 3 → 3 (Full House)
19. Row 8 / Column 1 → 7 (Full House)
20. Row 4 / Column 7 → 7 (Naked Single)
21. Row 3 / Column 6 → 8 (Hidden Single)
22. Row 6 / Column 5 → 7 (Hidden Single)
23. Row 3 / Column 8 → 2 (Hidden Single)
24. Row 6 / Column 6 → 3 (Hidden Single)
25. Row 6 / Column 7 → 8 (Naked Single)
26. Row 2 / Column 9 → 7 (Hidden Single)
27. Row 5 / Column 4 → 8 (Hidden Single)
28. Row 8 / Column 9 → 8 (Hidden Single)
29. Naked Pair: 4,5 in r2c6,r3c5 => r1c45,r2c5<>5, r2c5<>4
30. Row 4 / Column 4 → 5 (Hidden Single)
31. Naked Pair: 1,4 in r4c9,r6c8 => r5c89<>1, r5c89<>4
32. Naked Pair: 3,6 in r58c8 => r2c8<>6
33. Skyscraper: 1 in r1c4,r2c8 (connected by r6c48) => r1c9,r2c5<>1
34. Row 1 / Column 9 → 3 (Naked Single)
35. Row 2 / Column 5 → 9 (Naked Single)
36. Row 1 / Column 7 → 5 (Naked Single)
37. Row 5 / Column 9 → 6 (Naked Single)
38. Row 1 / Column 1 → 9 (Naked Single)
39. Row 2 / Column 7 → 6 (Naked Single)
40. Row 8 / Column 7 → 3 (Full House)
41. Row 8 / Column 8 → 6 (Full House)
42. Row 3 / Column 9 → 4 (Naked Single)
43. Row 2 / Column 8 → 1 (Full House)
44. Row 4 / Column 9 → 1 (Full House)
45. Row 5 / Column 8 → 3 (Naked Single)
46. Row 6 / Column 8 → 4 (Full House)
47. Row 2 / Column 1 → 5 (Naked Single)
48. Row 2 / Column 6 → 4 (Full House)
49. Row 3 / Column 1 → 6 (Full House)
50. Row 3 / Column 5 → 5 (Full House)
51. Row 4 / Column 6 → 2 (Naked Single)
52. Row 4 / Column 1 → 4 (Full House)
53. Row 8 / Column 6 → 5 (Full House)
54. Row 8 / Column 5 → 2 (Full House)
55. Row 6 / Column 4 → 1 (Naked Single)
56. Row 1 / Column 4 → 2 (Full House)
57. Row 1 / Column 5 → 1 (Full House)
58. Row 5 / Column 5 → 4 (Full House)
59. Row 5 / Column 1 → 1 (Full House)
60. Row 6 / Column 1 → 2 (Full House)