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

This Sudoku Puzzle has 55 steps and it is solved using Naked Single, Locked Candidates Type 1 (Pointing), Naked Pair, Naked Triple, Hidden Single, Hidden Pair, Skyscraper, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 5 → 3 (Naked Single)
2. Locked Candidates Type 1 (Pointing): 4 in b8 => r9c79<>4
3. Naked Pair: 5,9 in r48c5 => r7c5<>5, r7c5<>9
4. Naked Triple: 3,5,9 in r8c358 => r8c79<>3, r8c7<>5, r8c9<>9
5. Row 9 / Column 9 → 9 (Hidden Single)
6. Row 5 / Column 9 → 2 (Hidden Single)
7. Locked Candidates Type 1 (Pointing): 5 in b9 => r45c8<>5
8. Naked Pair: 3,8 in r5c28 => r5c1467<>3, r5c7<>8
9. Locked Candidates Type 1 (Pointing): 3 in b5 => r4c12789<>3
10. Hidden Pair: 1,6 in r14c8 => r1c8<>3, r14c8<>8
11. Skyscraper: 1 in r1c8,r2c2 (connected by r4c28) => r1c1,r2c7<>1
12. Row 1 / Column 8 → 1 (Hidden Single)
13. Row 1 / Column 4 → 8 (Naked Single)
14. Row 4 / Column 8 → 6 (Naked Single)
15. Row 2 / Column 5 → 2 (Naked Single)
16. Row 1 / Column 6 → 6 (Naked Single)
17. Row 7 / Column 5 → 8 (Naked Single)
18. Row 1 / Column 9 → 3 (Naked Single)
19. Row 1 / Column 1 → 2 (Full House)
20. Row 3 / Column 6 → 7 (Naked Single)
21. Row 3 / Column 4 → 1 (Full House)
22. Row 3 / Column 1 → 6 (Full House)
23. Row 2 / Column 7 → 8 (Naked Single)
24. Row 2 / Column 9 → 6 (Full House)
25. Row 6 / Column 9 → 7 (Naked Single)
26. Row 9 / Column 7 → 3 (Naked Single)
27. Row 8 / Column 9 → 4 (Naked Single)
28. Row 4 / Column 9 → 8 (Full House)
29. Row 6 / Column 7 → 1 (Naked Single)
30. Row 6 / Column 1 → 3 (Full House)
31. Row 8 / Column 8 → 5 (Naked Single)
32. Row 9 / Column 4 → 4 (Naked Single)
33. Row 8 / Column 7 → 7 (Naked Single)
34. Row 4 / Column 2 → 1 (Naked Single)
35. Row 5 / Column 8 → 3 (Naked Single)
36. Row 2 / Column 1 → 1 (Naked Single)
37. Row 2 / Column 2 → 3 (Full House)
38. Row 5 / Column 2 → 8 (Full House)
39. Row 7 / Column 8 → 2 (Naked Single)
40. Row 9 / Column 8 → 8 (Full House)
41. Row 9 / Column 6 → 2 (Full House)
42. Row 8 / Column 5 → 9 (Naked Single)
43. Row 4 / Column 5 → 5 (Full House)
44. Row 8 / Column 3 → 3 (Full House)
45. Row 7 / Column 3 → 9 (Full House)
46. Row 7 / Column 6 → 3 (Naked Single)
47. Row 7 / Column 4 → 5 (Full House)
48. Row 4 / Column 7 → 4 (Naked Single)
49. Row 5 / Column 7 → 5 (Full House)
50. Row 5 / Column 4 → 7 (Naked Single)
51. Row 4 / Column 4 → 3 (Full House)
52. Row 4 / Column 6 → 9 (Naked Single)
53. Row 4 / Column 1 → 7 (Full House)
54. Row 5 / Column 1 → 9 (Full House)
55. Row 5 / Column 6 → 4 (Full House)