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

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

Try To Solve This Puzzle

Solution Steps:

1. Row 2 / Column 2 → 8 (Naked Single)
2. Row 2 / Column 3 → 1 (Naked Single)
3. Row 3 / Column 5 → 9 (Naked Single)
4. Row 6 / Column 6 → 6 (Naked Single)
5. Row 3 / Column 2 → 4 (Hidden Single)
6. Row 3 / Column 6 → 3 (Hidden Single)
7. Row 9 / Column 9 → 8 (Hidden Single)
8. Row 3 / Column 8 → 6 (Hidden Single)
9. Row 8 / Column 3 → 9 (Hidden Single)
10. Row 9 / Column 1 → 1 (Hidden Single)
11. Row 5 / Column 7 → 6 (Hidden Single)
12. Row 5 / Column 9 → 9 (Hidden Single)
13. Row 1 / Column 7 → 9 (Hidden Single)
14. Locked Candidates Type 1 (Pointing): 7 in b2 => r1c9<>7
15. Locked Candidates Type 1 (Pointing): 5 in b3 => r467c9<>5
16. Locked Candidates Type 1 (Pointing): 3 in b6 => r4c13<>3
17. Locked Candidates Type 1 (Pointing): 5 in b6 => r89c7<>5
18. Locked Candidates Type 1 (Pointing): 7 in b8 => r7c89<>7
19. Locked Candidates Type 2 (Claiming): 2 in c2 => r7c1,r9c3<>2
20. Locked Candidates Type 2 (Claiming): 5 in c2 => r7c1,r9c3<>5
21. Locked Candidates Type 2 (Claiming): 5 in r9 => r7c45<>5
22. Locked Candidates Type 2 (Claiming): 7 in c9 => r46c7<>7
23. Naked Pair: 1,2 in r1c6,r3c4 => r1c4<>1, r1c4<>2
24. Naked Pair: 5,8 in r5c5,r6c4 => r4c4<>5
25. XY-Wing: 3/6/5 in r59c3,r9c5 => r5c5<>5
26. Row 5 / Column 5 → 8 (Naked Single)
27. Row 1 / Column 5 → 7 (Naked Single)
28. Row 6 / Column 4 → 5 (Naked Single)
29. Row 1 / Column 4 → 8 (Naked Single)
30. Row 7 / Column 5 → 6 (Naked Single)
31. Row 9 / Column 5 → 5 (Full House)
32. Row 6 / Column 7 → 4 (Naked Single)
33. Row 9 / Column 4 → 2 (Naked Single)
34. Row 7 / Column 1 → 3 (Naked Single)
35. Row 6 / Column 3 → 2 (Naked Single)
36. Row 6 / Column 9 → 7 (Naked Single)
37. Row 6 / Column 1 → 8 (Full House)
38. Row 3 / Column 4 → 1 (Naked Single)
39. Row 1 / Column 6 → 2 (Full House)
40. Row 9 / Column 6 → 4 (Naked Single)
41. Row 9 / Column 7 → 3 (Naked Single)
42. Row 9 / Column 3 → 6 (Full House)
43. Row 5 / Column 1 → 5 (Naked Single)
44. Row 5 / Column 3 → 3 (Full House)
45. Row 7 / Column 8 → 5 (Naked Single)
46. Row 7 / Column 9 → 4 (Naked Single)
47. Row 4 / Column 9 → 3 (Naked Single)
48. Row 4 / Column 7 → 5 (Full House)
49. Row 3 / Column 9 → 5 (Naked Single)
50. Row 3 / Column 1 → 2 (Full House)
51. Row 1 / Column 9 → 1 (Full House)
52. Row 4 / Column 4 → 9 (Naked Single)
53. Row 4 / Column 6 → 1 (Full House)
54. Row 7 / Column 6 → 9 (Full House)
55. Row 7 / Column 4 → 7 (Full House)
56. Row 7 / Column 2 → 2 (Full House)
57. Row 8 / Column 2 → 5 (Full House)
58. Row 2 / Column 7 → 7 (Naked Single)
59. Row 2 / Column 8 → 3 (Full House)
60. Row 8 / Column 8 → 7 (Full House)
61. Row 8 / Column 7 → 2 (Full House)
62. Row 1 / Column 3 → 5 (Naked Single)
63. Row 1 / Column 1 → 6 (Full House)
64. Row 4 / Column 1 → 7 (Full House)
65. Row 4 / Column 3 → 4 (Full House)