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

This Sudoku Puzzle has 57 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming) techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 4 → 4 (Hidden Single)
2. Row 6 / Column 6 → 4 (Hidden Single)
3. Row 3 / Column 5 → 9 (Hidden Single)
4. Row 8 / Column 4 → 3 (Hidden Single)
5. Row 8 / Column 8 → 5 (Hidden Single)
6. Row 8 / Column 3 → 1 (Naked Single)
7. Row 8 / Column 1 → 7 (Naked Single)
8. Row 8 / Column 6 → 2 (Full House)
9. Row 9 / Column 5 → 8 (Naked Single)
10. Row 7 / Column 5 → 7 (Naked Single)
11. Row 3 / Column 8 → 8 (Hidden Single)
12. Row 3 / Column 1 → 1 (Hidden Single)
13. Row 1 / Column 4 → 8 (Hidden Single)
14. Row 7 / Column 2 → 8 (Hidden Single)
15. Row 5 / Column 6 → 8 (Hidden Single)
16. Row 2 / Column 4 → 6 (Hidden Single)
17. Row 2 / Column 6 → 5 (Naked Single)
18. Row 1 / Column 5 → 2 (Full House)
19. Row 5 / Column 5 → 5 (Full House)
20. Row 2 / Column 2 → 3 (Naked Single)
21. Row 3 / Column 3 → 6 (Naked Single)
22. Row 1 / Column 3 → 5 (Full House)
23. Row 3 / Column 9 → 3 (Full House)
24. Row 6 / Column 2 → 7 (Naked Single)
25. Row 9 / Column 2 → 5 (Hidden Single)
26. Locked Candidates Type 1 (Pointing): 6 in b7 => r45c1<>6
27. Locked Candidates Type 1 (Pointing): 3 in b9 => r6c7<>3
28. Locked Candidates Type 2 (Claiming): 2 in r6 => r4c78,r5c89<>2
29. Row 6 / Column 8 → 2 (Hidden Single)
30. Row 6 / Column 9 → 9 (Naked Single)
31. Row 2 / Column 9 → 2 (Naked Single)
32. Row 2 / Column 7 → 9 (Full House)
33. Row 6 / Column 7 → 8 (Naked Single)
34. Row 6 / Column 3 → 3 (Full House)
35. Row 5 / Column 1 → 2 (Naked Single)
36. Row 9 / Column 3 → 4 (Naked Single)
37. Row 4 / Column 3 → 8 (Full House)
38. Row 4 / Column 1 → 4 (Naked Single)
39. Row 5 / Column 4 → 7 (Naked Single)
40. Row 4 / Column 4 → 2 (Full House)
41. Row 9 / Column 9 → 1 (Naked Single)
42. Row 5 / Column 9 → 6 (Naked Single)
43. Row 7 / Column 7 → 3 (Naked Single)
44. Row 7 / Column 9 → 4 (Naked Single)
45. Row 1 / Column 9 → 7 (Full House)
46. Row 9 / Column 7 → 2 (Full House)
47. Row 9 / Column 6 → 6 (Naked Single)
48. Row 7 / Column 6 → 1 (Full House)
49. Row 7 / Column 1 → 6 (Full House)
50. Row 9 / Column 1 → 3 (Full House)
51. Row 4 / Column 8 → 1 (Naked Single)
52. Row 5 / Column 2 → 1 (Naked Single)
53. Row 4 / Column 2 → 6 (Full House)
54. Row 4 / Column 7 → 7 (Full House)
55. Row 1 / Column 7 → 1 (Full House)
56. Row 1 / Column 8 → 6 (Full House)
57. Row 5 / Column 8 → 3 (Full House)