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

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

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 4 → 1 (Naked Single)
2. Row 5 / Column 8 → 3 (Naked Single)
3. Row 4 / Column 5 → 7 (Hidden Single)
4. Row 2 / Column 6 → 7 (Hidden Single)
5. Row 3 / Column 4 → 6 (Hidden Single)
6. Row 1 / Column 3 → 6 (Hidden Single)
7. Row 6 / Column 1 → 6 (Hidden Single)
8. Row 5 / Column 9 → 6 (Hidden Single)
9. Row 9 / Column 7 → 6 (Hidden Single)
10. Row 4 / Column 1 → 1 (Hidden Single)
11. Row 6 / Column 2 → 9 (Hidden Single)
12. Row 7 / Column 5 → 6 (Hidden Single)
13. Row 4 / Column 7 → 2 (Hidden Single)
14. Row 4 / Column 2 → 4 (Naked Single)
15. Row 4 / Column 4 → 8 (Full House)
16. Row 9 / Column 3 → 9 (Hidden Single)
17. Row 7 / Column 6 → 2 (Hidden Single)
18. Row 1 / Column 6 → 9 (Naked Single)
19. Row 2 / Column 4 → 4 (Naked Single)
20. Row 8 / Column 4 → 9 (Full House)
21. Row 8 / Column 5 → 8 (Hidden Single)
22. Row 7 / Column 9 → 9 (Hidden Single)
23. Locked Candidates Type 1 (Pointing): 3 in b9 => r8c6<>3
24. Row 8 / Column 6 → 4 (Naked Single)
25. Row 6 / Column 6 → 3 (Full House)
26. Row 9 / Column 5 → 3 (Full House)
27. Row 6 / Column 5 → 4 (Full House)
28. Row 9 / Column 2 → 7 (Naked Single)
29. Row 9 / Column 8 → 4 (Full House)
30. Row 5 / Column 2 → 2 (Naked Single)
31. Row 5 / Column 3 → 7 (Full House)
32. Row 8 / Column 3 → 1 (Naked Single)
33. Row 7 / Column 8 → 1 (Naked Single)
34. Row 8 / Column 9 → 3 (Naked Single)
35. Row 8 / Column 7 → 7 (Full House)
36. Row 6 / Column 8 → 8 (Naked Single)
37. Row 6 / Column 7 → 1 (Full House)
38. Row 2 / Column 9 → 2 (Naked Single)
39. Row 3 / Column 9 → 1 (Full House)
40. Row 1 / Column 8 → 5 (Naked Single)
41. Row 3 / Column 8 → 7 (Full House)
42. Row 1 / Column 7 → 8 (Naked Single)
43. Row 2 / Column 3 → 8 (Naked Single)
44. Row 3 / Column 5 → 2 (Naked Single)
45. Row 7 / Column 3 → 4 (Full House)
46. Row 1 / Column 5 → 1 (Full House)
47. Row 1 / Column 2 → 8 (Full House)
48. Row 3 / Column 3 → 4 (Full House)
49. Row 7 / Column 1 → 3 (Full House)
50. Row 7 / Column 2 → 3 (Full House)
51. Row 2 / Column 1 → 9 (Full House)
52. Row 3 / Column 1 → 9 (Full House)
53. Row 2 / Column 7 → 3 (Full House)
54. Row 3 / Column 7 → 3 (Full House)
55. Row 3 / Column 2 → 5 (Naked Single)