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

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

Try To Solve This Puzzle

## Solution Steps:

1. Row 1 / Column 5 → 3 (Naked Single)
2. Row 1 / Column 7 → 4 (Naked Single)
3. Row 1 / Column 8 → 1 (Naked Single)
4. Row 1 / Column 2 → 6 (Full House)
5. Row 6 / Column 3 → 6 (Hidden Single)
6. Row 8 / Column 8 → 6 (Hidden Single)
7. Row 8 / Column 6 → 4 (Hidden Single)
8. Row 8 / Column 3 → 9 (Naked Single)
9. Row 2 / Column 9 → 7 (Hidden Single)
10. Row 3 / Column 8 → 3 (Naked Single)
11. Row 6 / Column 9 → 1 (Hidden Single)
12. Row 5 / Column 5 → 6 (Hidden Single)
13. Row 7 / Column 6 → 9 (Hidden Single)
14. Row 3 / Column 6 → 7 (Hidden Single)
15. Row 2 / Column 2 → 3 (Hidden Single)
16. Row 4 / Column 6 → 1 (Hidden Single)
17. Locked Candidates Type 1 (Pointing): 8 in b8 => r246c5<>8
18. Row 2 / Column 5 → 2 (Naked Single)
19. Row 2 / Column 3 → 4 (Naked Single)
20. Row 3 / Column 4 → 1 (Naked Single)
21. Row 2 / Column 4 → 8 (Full House)
22. Row 3 / Column 2 → 2 (Full House)
23. Row 2 / Column 1 → 1 (Full House)
24. Row 9 / Column 3 → 7 (Naked Single)
25. Row 4 / Column 3 → 2 (Full House)
26. Row 7 / Column 2 → 5 (Naked Single)
27. Row 9 / Column 8 → 5 (Naked Single)
28. Row 7 / Column 4 → 2 (Naked Single)
29. Row 7 / Column 8 → 7 (Full House)
30. Row 8 / Column 1 → 8 (Naked Single)
31. Row 2 / Column 8 → 9 (Naked Single)
32. Row 2 / Column 7 → 5 (Full House)
33. Row 8 / Column 9 → 3 (Naked Single)
34. Row 5 / Column 9 → 5 (Full House)
35. Row 8 / Column 7 → 2 (Full House)
36. Row 9 / Column 5 → 8 (Naked Single)
37. Row 8 / Column 5 → 5 (Full House)
38. Row 8 / Column 2 → 1 (Full House)
39. Row 9 / Column 2 → 4 (Full House)
40. Row 5 / Column 1 → 4 (Naked Single)
41. Row 4 / Column 1 → 5 (Full House)
42. Row 6 / Column 7 → 9 (Naked Single)
43. Row 4 / Column 7 → 3 (Full House)
44. Row 5 / Column 4 → 3 (Naked Single)
45. Row 6 / Column 5 → 7 (Naked Single)
46. Row 4 / Column 5 → 9 (Full House)
47. Row 4 / Column 4 → 4 (Naked Single)
48. Row 6 / Column 4 → 5 (Full House)
49. Row 6 / Column 2 → 8 (Naked Single)
50. Row 4 / Column 8 → 8 (Naked Single)
51. Row 4 / Column 2 → 7 (Full House)
52. Row 5 / Column 2 → 9 (Full House)
53. Row 6 / Column 6 → 2 (Naked Single)
54. Row 5 / Column 6 → 8 (Full House)
55. Row 5 / Column 8 → 2 (Full House)
56. Row 6 / Column 8 → 4 (Full House)