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

This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Naked Single, Locked Pair, Locked Candidates Type 1 (Pointing), Full House, Locked Candidates Type 2 (Claiming), Naked Triple techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 5 → 5 (Hidden Single)
2. Row 7 / Column 9 → 5 (Hidden Single)
3. Row 3 / Column 4 → 5 (Hidden Single)
4. Row 7 / Column 6 → 1 (Hidden Single)
5. Row 9 / Column 9 → 6 (Hidden Single)
6. Row 6 / Column 9 → 2 (Naked Single)
7. Locked Pair: 3,7 in r79c2 => r23c2,r8c13,r9c13<>3, r3c2,r89c1<>7
8. Locked Pair: 1,9 in r8c13 => r8c4789,r9c13<>9
9. Row 8 / Column 9 → 4 (Naked Single)
10. Locked Candidates Type 1 (Pointing): 1 in b6 => r3c8<>1
11. Locked Candidates Type 1 (Pointing): 9 in b9 => r235c8<>9
12. Row 5 / Column 8 → 1 (Naked Single)
13. Row 4 / Column 8 → 7 (Naked Single)
14. Row 6 / Column 7 → 6 (Naked Single)
15. Row 5 / Column 7 → 9 (Full House)
16. Row 3 / Column 2 → 1 (Hidden Single)
17. Row 3 / Column 9 → 9 (Naked Single)
18. Row 1 / Column 9 → 1 (Full House)
19. Row 8 / Column 7 → 7 (Hidden Single)
20. Row 8 / Column 4 → 3 (Naked Single)
21. Row 4 / Column 4 → 6 (Naked Single)
22. Row 8 / Column 8 → 2 (Naked Single)
23. Row 5 / Column 1 → 6 (Hidden Single)
24. Row 7 / Column 5 → 6 (Hidden Single)
25. Locked Candidates Type 1 (Pointing): 3 in b5 => r123c6<>3
26. Locked Candidates Type 1 (Pointing): 3 in b9 => r23c8<>3
27. Locked Candidates Type 2 (Claiming): 3 in r1 => r2c13,r3c13<>3
28. Naked Triple: 2,3,4 in r2c257 => r2c168<>4, r2c3<>2
29. Row 2 / Column 8 → 8 (Naked Single)
30. Row 3 / Column 8 → 4 (Naked Single)
31. Row 3 / Column 1 → 7 (Naked Single)
32. Row 3 / Column 5 → 3 (Naked Single)
33. Row 2 / Column 5 → 4 (Naked Single)
34. Row 9 / Column 5 → 7 (Full House)
35. Row 3 / Column 7 → 2 (Naked Single)
36. Row 2 / Column 7 → 3 (Full House)
37. Row 2 / Column 2 → 2 (Naked Single)
38. Row 7 / Column 4 → 9 (Naked Single)
39. Row 9 / Column 6 → 4 (Full House)
40. Row 9 / Column 2 → 3 (Naked Single)
41. Row 3 / Column 3 → 6 (Naked Single)
42. Row 3 / Column 6 → 8 (Full House)
43. Row 5 / Column 2 → 4 (Naked Single)
44. Row 5 / Column 6 → 2 (Full House)
45. Row 7 / Column 2 → 7 (Full House)
46. Row 7 / Column 8 → 3 (Full House)
47. Row 9 / Column 8 → 9 (Full House)
48. Row 1 / Column 4 → 7 (Naked Single)
49. Row 6 / Column 4 → 4 (Full House)
50. Row 4 / Column 6 → 3 (Naked Single)
51. Row 6 / Column 6 → 7 (Full House)
52. Row 1 / Column 6 → 9 (Naked Single)
53. Row 2 / Column 6 → 6 (Full House)
54. Row 4 / Column 1 → 1 (Naked Single)
55. Row 4 / Column 3 → 2 (Full House)
56. Row 1 / Column 3 → 3 (Naked Single)
57. Row 1 / Column 1 → 4 (Full House)
58. Row 8 / Column 1 → 9 (Naked Single)
59. Row 8 / Column 3 → 1 (Full House)
60. Row 6 / Column 3 → 8 (Naked Single)
61. Row 6 / Column 1 → 3 (Full House)
62. Row 2 / Column 1 → 5 (Naked Single)
63. Row 2 / Column 3 → 9 (Full House)
64. Row 9 / Column 3 → 5 (Full House)
65. Row 9 / Column 1 → 8 (Full House)