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

This Sudoku Puzzle has 68 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Naked Triple, Hidden Pair, undefined techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 6 → 9 (Naked Single)
2. Row 5 / Column 2 → 6 (Hidden Single)
3. Row 5 / Column 8 → 2 (Hidden Single)
4. Row 6 / Column 4 → 8 (Hidden Single)
5. Row 6 / Column 9 → 6 (Hidden Single)
6. Row 1 / Column 2 → 9 (Hidden Single)
7. Row 8 / Column 5 → 9 (Hidden Single)
8. Row 7 / Column 6 → 5 (Hidden Single)
9. Row 5 / Column 6 → 1 (Naked Single)
10. Row 5 / Column 4 → 3 (Naked Single)
11. Row 5 / Column 5 → 5 (Full House)
12. Row 9 / Column 6 → 8 (Hidden Single)
13. Locked Candidates Type 1 (Pointing): 2 in b3 => r1c4<>2
14. Locked Candidates Type 1 (Pointing): 5 in b3 => r1c3<>5
15. Locked Candidates Type 1 (Pointing): 4 in b5 => r29c5<>4
16. Locked Candidates Type 1 (Pointing): 7 in b5 => r29c5<>7
17. Row 9 / Column 4 → 7 (Hidden Single)
18. Row 9 / Column 2 → 4 (Hidden Single)
19. Row 7 / Column 4 → 4 (Hidden Single)
20. Naked Triple: 1,3,9 in r246c7 => r1c7<>3, r8c7<>1
21. Locked Candidates Type 1 (Pointing): 1 in b9 => r6c8<>1
22. Hidden Pair: 2,5 in r1c79 => r1c9<>3, r1c9<>7
23. W-Wing: 7/3 in r1c8,r4c9 connected by 3 in r9c89 => r2c9,r6c8<>7
24. Row 2 / Column 6 → 7 (Hidden Single)
25. Row 1 / Column 6 → 4 (Full House)
26. Row 4 / Column 9 → 7 (Hidden Single)
27. Row 4 / Column 5 → 4 (Naked Single)
28. Row 6 / Column 5 → 7 (Full House)
29. Row 1 / Column 8 → 7 (Hidden Single)
30. Row 1 / Column 1 → 3 (Hidden Single)
31. Row 8 / Column 1 → 6 (Hidden Single)
32. X-Wing: 1 r18 c34 => r246c3<>1
33. 2-String Kite: 8 in r3c8,r8c3 (connected by r7c8,r8c9) => r3c3<>8
34. W-Wing: 1/3 in r2c5,r9c8 connected by 3 in r3c58 => r9c5<>1
35. Row 9 / Column 5 → 2 (Naked Single)
36. Row 8 / Column 4 → 1 (Full House)
37. Row 3 / Column 5 → 3 (Naked Single)
38. Row 2 / Column 5 → 1 (Full House)
39. Row 9 / Column 9 → 3 (Naked Single)
40. Row 9 / Column 8 → 1 (Full House)
41. Row 1 / Column 4 → 6 (Naked Single)
42. Row 3 / Column 4 → 2 (Full House)
43. Row 3 / Column 8 → 8 (Naked Single)
44. Row 1 / Column 3 → 1 (Naked Single)
45. Row 2 / Column 9 → 9 (Naked Single)
46. Row 3 / Column 2 → 5 (Naked Single)
47. Row 3 / Column 3 → 6 (Full House)
48. Row 7 / Column 8 → 9 (Naked Single)
49. Row 6 / Column 8 → 3 (Full House)
50. Row 2 / Column 7 → 3 (Naked Single)
51. Row 4 / Column 7 → 1 (Naked Single)
52. Row 6 / Column 7 → 9 (Full House)
53. Row 6 / Column 2 → 1 (Naked Single)
54. Row 6 / Column 1 → 4 (Naked Single)
55. Row 6 / Column 3 → 5 (Full House)
56. Row 7 / Column 2 → 8 (Naked Single)
57. Row 4 / Column 2 → 3 (Full House)
58. Row 2 / Column 1 → 8 (Naked Single)
59. Row 2 / Column 3 → 4 (Full House)
60. Row 7 / Column 9 → 2 (Naked Single)
61. Row 7 / Column 1 → 1 (Full House)
62. Row 8 / Column 3 → 2 (Full House)
63. Row 4 / Column 1 → 2 (Full House)
64. Row 4 / Column 3 → 8 (Full House)
65. Row 1 / Column 9 → 5 (Naked Single)
66. Row 1 / Column 7 → 2 (Full House)
67. Row 8 / Column 7 → 5 (Full House)
68. Row 8 / Column 9 → 8 (Full House)