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

This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Hidden Single, Naked Triple, Locked Candidates Type 1 (Pointing), undefined, Swordfish, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 1 → 9 (Naked Single)
2. Row 5 / Column 4 → 3 (Hidden Single)
3. Row 5 / Column 9 → 9 (Hidden Single)
4. Naked Triple: 1,3,4 in r2c139 => r2c5<>1, r2c7<>3
5. Locked Candidates Type 1 (Pointing): 1 in b2 => r1c12<>1
6. X-Wing: 2 r37 c34 => r19c4,r8c3<>2
7. X-Wing: 6 c68 r59 => r5c25,r9c59<>6
8. Row 3 / Column 2 → 6 (Hidden Single)
9. Locked Candidates Type 1 (Pointing): 5 in b1 => r1c89<>5
10. Naked Triple: 1,4,8 in r45c1,r5c2 => r4c3<>4
11. Swordfish: 4 r248 c139 => r1c19,r3c3,r5c1<>4
12. Row 3 / Column 3 → 2 (Naked Single)
13. Row 3 / Column 4 → 8 (Naked Single)
14. Row 1 / Column 5 → 2 (Hidden Single)
15. Row 7 / Column 4 → 2 (Hidden Single)
16. Row 1 / Column 9 → 8 (Hidden Single)
17. Row 1 / Column 4 → 1 (Hidden Single)
18. Row 9 / Column 4 → 7 (Full House)
19. Naked Triple: 5,7,9 in r234c7 => r67c7<>5, r6c7<>7
20. Row 6 / Column 7 → 3 (Naked Single)
21. X-Wing: 7 c68 r15 => r5c5<>7
22. Row 5 / Column 5 → 8 (Naked Single)
23. Row 5 / Column 1 → 1 (Naked Single)
24. Row 5 / Column 2 → 4 (Naked Single)
25. Row 1 / Column 2 → 5 (Naked Single)
26. Row 4 / Column 1 → 8 (Naked Single)
27. Row 1 / Column 1 → 3 (Naked Single)
28. Row 2 / Column 1 → 4 (Naked Single)
29. Row 2 / Column 3 → 1 (Full House)
30. Row 2 / Column 9 → 3 (Naked Single)
31. Row 8 / Column 1 → 2 (Naked Single)
32. Row 9 / Column 1 → 5 (Full House)
33. Row 7 / Column 3 → 3 (Naked Single)
34. Row 8 / Column 3 → 4 (Naked Single)
35. Row 8 / Column 9 → 6 (Naked Single)
36. Row 9 / Column 9 → 2 (Naked Single)
37. Row 7 / Column 8 → 5 (Naked Single)
38. Row 6 / Column 9 → 5 (Naked Single)
39. Row 4 / Column 9 → 4 (Full House)
40. Row 8 / Column 5 → 1 (Naked Single)
41. Row 8 / Column 7 → 8 (Full House)
42. Row 9 / Column 8 → 3 (Naked Single)
43. Row 7 / Column 7 → 1 (Full House)
44. Row 3 / Column 8 → 4 (Naked Single)
45. Row 4 / Column 7 → 7 (Naked Single)
46. Row 5 / Column 8 → 6 (Full House)
47. Row 1 / Column 8 → 7 (Full House)
48. Row 5 / Column 6 → 7 (Full House)
49. Row 1 / Column 6 → 4 (Full House)
50. Row 9 / Column 5 → 9 (Naked Single)
51. Row 7 / Column 2 → 9 (Naked Single)
52. Row 7 / Column 6 → 8 (Full House)
53. Row 9 / Column 2 → 1 (Full House)
54. Row 9 / Column 6 → 6 (Full House)
55. Row 3 / Column 6 → 9 (Full House)
56. Row 2 / Column 5 → 7 (Full House)
57. Row 2 / Column 7 → 9 (Full House)
58. Row 3 / Column 7 → 5 (Full House)
59. Row 4 / Column 3 → 6 (Naked Single)
60. Row 4 / Column 5 → 5 (Full House)
61. Row 6 / Column 5 → 6 (Full House)
62. Row 6 / Column 3 → 7 (Full House)