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

This Sudoku Puzzle has 56 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Skyscraper techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 1 / Column 3 → 3 (Naked Single)
2. Row 6 / Column 8 → 7 (Naked Single)
3. Row 1 / Column 4 → 2 (Naked Single)
4. Row 9 / Column 7 → 8 (Naked Single)
5. Row 1 / Column 5 → 7 (Naked Single)
6. Row 1 / Column 7 → 5 (Full House)
7. Row 6 / Column 7 → 2 (Naked Single)
8. Row 7 / Column 9 → 4 (Naked Single)
9. Row 5 / Column 7 → 4 (Naked Single)
10. Row 2 / Column 9 → 9 (Naked Single)
11. Row 8 / Column 7 → 3 (Naked Single)
12. Row 2 / Column 7 → 7 (Full House)
13. Row 7 / Column 8 → 1 (Full House)
14. Row 3 / Column 9 → 2 (Naked Single)
15. Row 5 / Column 9 → 8 (Full House)
16. Row 6 / Column 5 → 5 (Hidden Single)
17. Row 5 / Column 1 → 5 (Hidden Single)
18. Row 3 / Column 2 → 4 (Hidden Single)
19. Row 3 / Column 8 → 3 (Naked Single)
20. Row 2 / Column 8 → 4 (Full House)
21. Row 8 / Column 3 → 6 (Hidden Single)
22. Row 5 / Column 6 → 7 (Hidden Single)
23. Row 3 / Column 5 → 9 (Hidden Single)
24. Row 8 / Column 4 → 5 (Hidden Single)
25. Row 5 / Column 2 → 3 (Hidden Single)
26. Row 7 / Column 1 → 3 (Hidden Single)
27. Row 2 / Column 5 → 3 (Hidden Single)
28. Row 8 / Column 5 → 4 (Hidden Single)
29. Row 4 / Column 4 → 4 (Hidden Single)
30. Locked Candidates Type 1 (Pointing): 2 in b5 => r79c5<>2
31. Row 9 / Column 5 → 1 (Naked Single)
32. Locked Candidates Type 2 (Claiming): 8 in c4 => r2c6<>8
33. Skyscraper: 1 in r3c1,r5c3 (connected by r35c4) => r2c3<>1
34. Row 2 / Column 3 → 8 (Naked Single)
35. Row 3 / Column 1 → 1 (Full House)
36. Row 3 / Column 4 → 8 (Full House)
37. Row 8 / Column 1 → 8 (Full House)
38. Row 7 / Column 2 → 2 (Naked Single)
39. Row 8 / Column 6 → 9 (Naked Single)
40. Row 8 / Column 2 → 1 (Full House)
41. Row 9 / Column 3 → 9 (Full House)
42. Row 9 / Column 6 → 2 (Full House)
43. Row 6 / Column 2 → 8 (Naked Single)
44. Row 4 / Column 2 → 9 (Full House)
45. Row 6 / Column 6 → 1 (Full House)
46. Row 4 / Column 3 → 2 (Naked Single)
47. Row 5 / Column 3 → 1 (Full House)
48. Row 4 / Column 8 → 6 (Naked Single)
49. Row 4 / Column 5 → 8 (Full House)
50. Row 5 / Column 8 → 9 (Full House)
51. Row 2 / Column 6 → 6 (Naked Single)
52. Row 2 / Column 4 → 1 (Full House)
53. Row 5 / Column 4 → 6 (Full House)
54. Row 7 / Column 6 → 8 (Full House)
55. Row 7 / Column 5 → 6 (Full House)
56. Row 5 / Column 5 → 2 (Full House)