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

This Sudoku Puzzle has 67 steps and it is solved using Hidden Single, Naked Triple, Locked Candidates Type 1 (Pointing), undefined, Skyscraper, Locked Candidates Type 2 (Claiming), Turbot Fish, Naked Single, Uniqueness Test 1, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 8 → 3 (Hidden Single)
2. Row 3 / Column 7 → 8 (Hidden Single)
3. Row 4 / Column 2 → 8 (Hidden Single)
4. Row 7 / Column 1 → 8 (Hidden Single)
5. Row 3 / Column 5 → 5 (Hidden Single)
6. Row 1 / Column 7 → 5 (Hidden Single)
7. Row 8 / Column 5 → 8 (Hidden Single)
8. Row 1 / Column 1 → 6 (Hidden Single)
9. Row 3 / Column 3 → 3 (Hidden Single)
10. Row 1 / Column 8 → 1 (Hidden Single)
11. Row 2 / Column 6 → 6 (Hidden Single)
12. Row 9 / Column 1 → 7 (Hidden Single)
13. Row 9 / Column 3 → 1 (Hidden Single)
14. Row 5 / Column 1 → 4 (Hidden Single)
15. Row 9 / Column 6 → 5 (Hidden Single)
16. Row 8 / Column 3 → 5 (Hidden Single)
17. Row 5 / Column 7 → 1 (Hidden Single)
18. Row 6 / Column 4 → 5 (Hidden Single)
19. Row 4 / Column 4 → 1 (Hidden Single)
20. Row 6 / Column 5 → 7 (Hidden Single)
21. Naked Triple: 2,4,9 in r8c8,r9c79 => r7c79<>2, r7c79,r8c7<>9, r7c9<>4
22. Locked Candidates Type 1 (Pointing): 2 in b9 => r9c5<>2
23. 2-String Kite: 2 in r3c9,r5c3 (connected by r1c3,r3c2) => r5c9<>2
24. Locked Candidates Type 1 (Pointing): 2 in b6 => r4c56<>2
25. Skyscraper: 2 in r5c3,r6c6 (connected by r1c36) => r5c5,r6c2<>2
26. Row 5 / Column 3 → 2 (Hidden Single)
27. Row 6 / Column 6 → 2 (Hidden Single)
28. Naked Triple: 4,6,9 in r459c5 => r17c5<>9, r7c5<>4
29. Locked Candidates Type 2 (Claiming): 4 in r7 => r8c2<>4
30. Turbot Fish: 9 r2c4 =9= r1c6 -9- r1c3 =9= r7c3 => r7c4<>9
31. Locked Candidates Type 2 (Claiming): 9 in r7 => r8c2<>9
32. Row 8 / Column 2 → 6 (Naked Single)
33. Uniqueness Test 1: 4/9 in r1c23,r7c23 => r1c2<>4, r1c2<>9
34. Uniqueness Test 1: 1/9 in r3c12,r6c12 => r3c2<>1, r3c2<>9
35. Row 3 / Column 2 → 2 (Naked Single)
36. Row 1 / Column 2 → 7 (Naked Single)
37. Row 3 / Column 9 → 9 (Naked Single)
38. Row 3 / Column 1 → 1 (Full House)
39. Row 6 / Column 1 → 9 (Full House)
40. Row 6 / Column 2 → 1 (Full House)
41. Row 5 / Column 9 → 6 (Naked Single)
42. Row 5 / Column 5 → 9 (Full House)
43. Row 7 / Column 9 → 7 (Naked Single)
44. Row 4 / Column 6 → 4 (Naked Single)
45. Row 4 / Column 5 → 6 (Full House)
46. Row 9 / Column 5 → 4 (Naked Single)
47. Row 7 / Column 4 → 2 (Naked Single)
48. Row 8 / Column 7 → 3 (Naked Single)
49. Row 9 / Column 9 → 2 (Naked Single)
50. Row 1 / Column 9 → 4 (Full House)
51. Row 9 / Column 7 → 9 (Full House)
52. Row 2 / Column 4 → 9 (Naked Single)
53. Row 8 / Column 4 → 7 (Full House)
54. Row 7 / Column 5 → 3 (Naked Single)
55. Row 8 / Column 6 → 9 (Full House)
56. Row 8 / Column 8 → 4 (Full House)
57. Row 7 / Column 7 → 6 (Full House)
58. Row 1 / Column 6 → 3 (Full House)
59. Row 1 / Column 5 → 2 (Full House)
60. Row 1 / Column 3 → 9 (Full House)
61. Row 2 / Column 2 → 4 (Full House)
62. Row 7 / Column 3 → 4 (Full House)
63. Row 7 / Column 2 → 9 (Full House)
64. Row 2 / Column 8 → 2 (Naked Single)
65. Row 2 / Column 7 → 7 (Full House)
66. Row 4 / Column 7 → 2 (Full House)
67. Row 4 / Column 8 → 9 (Full House)