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

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

Try To Solve This Puzzle

## Solution Steps:

1. Row 9 / Column 6 → 1 (Naked Single)
2. Row 2 / Column 9 → 9 (Hidden Single)
3. Row 4 / Column 2 → 1 (Hidden Single)
4. Row 2 / Column 5 → 5 (Hidden Single)
5. Row 7 / Column 7 → 9 (Hidden Single)
6. Row 8 / Column 8 → 5 (Hidden Single)
7. Row 6 / Column 4 → 1 (Hidden Single)
8. Row 7 / Column 3 → 1 (Hidden Single)
9. Row 8 / Column 9 → 1 (Hidden Single)
10. Locked Candidates Type 1 (Pointing): 8 in b2 => r45c4<>8
11. Locked Candidates Type 1 (Pointing): 3 in b3 => r7c8<>3
12. Locked Candidates Type 1 (Pointing): 6 in b4 => r5c59<>6
13. Naked Pair: 5,8 in r6c16 => r6c8<>8
14. Naked Triple: 2,5,8 in r246c1 => r3c1<>2, r3c1<>5, r3c1<>8
15. Row 3 / Column 2 → 5 (Hidden Single)
16. Row 9 / Column 3 → 5 (Hidden Single)
17. Row 3 / Column 1 → 7 (Hidden Single)
18. Row 8 / Column 1 → 4 (Naked Single)
19. Row 1 / Column 2 → 4 (Hidden Single)
20. Row 5 / Column 4 → 4 (Hidden Single)
21. Row 6 / Column 5 → 6 (Naked Single)
22. Row 6 / Column 8 → 4 (Naked Single)
23. Row 7 / Column 8 → 8 (Naked Single)
24. Row 3 / Column 7 → 4 (Hidden Single)
25. Row 4 / Column 9 → 6 (Hidden Single)
26. Row 3 / Column 9 → 8 (Naked Single)
27. Row 3 / Column 4 → 2 (Naked Single)
28. Row 3 / Column 8 → 6 (Full House)
29. Row 5 / Column 9 → 7 (Naked Single)
30. Row 1 / Column 5 → 9 (Naked Single)
31. Row 1 / Column 4 → 8 (Full House)
32. Row 4 / Column 4 → 3 (Naked Single)
33. Row 8 / Column 4 → 9 (Full House)
34. Row 5 / Column 5 → 2 (Naked Single)
35. Row 1 / Column 3 → 3 (Naked Single)
36. Row 1 / Column 8 → 2 (Full House)
37. Row 2 / Column 8 → 3 (Full House)
38. Row 8 / Column 6 → 7 (Naked Single)
39. Row 8 / Column 2 → 3 (Full House)
40. Row 4 / Column 5 → 7 (Naked Single)
41. Row 7 / Column 2 → 7 (Naked Single)
42. Row 9 / Column 2 → 8 (Full House)
43. Row 5 / Column 2 → 6 (Naked Single)
44. Row 2 / Column 2 → 2 (Full House)
45. Row 5 / Column 3 → 8 (Naked Single)
46. Row 2 / Column 3 → 6 (Full House)
47. Row 2 / Column 1 → 8 (Full House)
48. Row 5 / Column 7 → 5 (Naked Single)
49. Row 4 / Column 7 → 8 (Full House)
50. Row 5 / Column 6 → 9 (Full House)
51. Row 6 / Column 1 → 5 (Naked Single)
52. Row 4 / Column 1 → 2 (Full House)
53. Row 4 / Column 6 → 5 (Full House)
54. Row 6 / Column 6 → 8 (Full House)
55. Give Up: Don't know how to proceed!