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

This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Naked Single, Full House, Hidden Triple, Locked Candidates Type 1 (Pointing), Skyscraper techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 8 → 9 (Hidden Single)
2. Row 9 / Column 7 → 4 (Hidden Single)
3. Row 5 / Column 8 → 1 (Hidden Single)
4. Row 7 / Column 6 → 9 (Hidden Single)
5. Row 3 / Column 6 → 8 (Hidden Single)
6. Row 8 / Column 7 → 9 (Hidden Single)
7. Row 4 / Column 5 → 9 (Hidden Single)
8. Row 9 / Column 3 → 9 (Hidden Single)
9. Row 3 / Column 5 → 2 (Hidden Single)
10. Row 5 / Column 4 → 4 (Hidden Single)
11. Row 9 / Column 8 → 8 (Hidden Single)
12. Row 7 / Column 1 → 8 (Hidden Single)
13. Row 9 / Column 6 → 2 (Hidden Single)
14. Row 9 / Column 2 → 7 (Naked Single)
15. Row 8 / Column 3 → 1 (Naked Single)
16. Row 8 / Column 1 → 2 (Naked Single)
17. Row 7 / Column 2 → 4 (Full House)
18. Row 1 / Column 7 → 8 (Hidden Single)
19. Row 8 / Column 5 → 7 (Hidden Single)
20. Row 5 / Column 2 → 2 (Hidden Single)
21. Row 1 / Column 5 → 4 (Hidden Single)
22. Row 7 / Column 4 → 3 (Hidden Single)
23. Row 3 / Column 2 → 3 (Hidden Single)
24. Hidden Triple: 1,4,7 in r2c136 => r2c16<>5, r2c13<>6, r2c6<>3
25. Locked Candidates Type 1 (Pointing): 6 in b1 => r3c4<>6
26. Skyscraper: 1 in r2c6,r6c4 (connected by r26c1) => r1c4,r4c6<>1
27. Row 6 / Column 4 → 1 (Hidden Single)
28. Row 3 / Column 4 → 7 (Hidden Single)
29. Row 2 / Column 6 → 1 (Naked Single)
30. Row 3 / Column 3 → 6 (Naked Single)
31. Row 3 / Column 1 → 5 (Full House)
32. Row 1 / Column 2 → 1 (Naked Single)
33. Row 4 / Column 2 → 5 (Full House)
34. Row 6 / Column 1 → 7 (Naked Single)
35. Row 4 / Column 6 → 3 (Naked Single)
36. Row 2 / Column 1 → 4 (Naked Single)
37. Row 2 / Column 3 → 7 (Full House)
38. Row 5 / Column 1 → 6 (Naked Single)
39. Row 4 / Column 1 → 1 (Full House)
40. Row 6 / Column 3 → 8 (Naked Single)
41. Row 4 / Column 3 → 4 (Full House)
42. Row 1 / Column 6 → 5 (Naked Single)
43. Row 5 / Column 6 → 7 (Full House)
44. Row 6 / Column 5 → 5 (Full House)
45. Row 5 / Column 7 → 5 (Full House)
46. Row 4 / Column 7 → 6 (Naked Single)
47. Row 4 / Column 9 → 8 (Full House)
48. Row 1 / Column 4 → 6 (Naked Single)
49. Row 1 / Column 8 → 3 (Full House)
50. Row 2 / Column 5 → 3 (Full House)
51. Row 9 / Column 5 → 6 (Full House)
52. Row 9 / Column 4 → 5 (Full House)
53. Row 2 / Column 7 → 2 (Naked Single)
54. Row 6 / Column 7 → 3 (Full House)
55. Row 6 / Column 9 → 2 (Full House)
56. Row 8 / Column 8 → 5 (Naked Single)
57. Row 8 / Column 9 → 3 (Full House)
58. Row 7 / Column 9 → 6 (Naked Single)
59. Row 2 / Column 9 → 5 (Full House)
60. Row 2 / Column 8 → 6 (Full House)
61. Row 7 / Column 8 → 2 (Full House)