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

This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Full House, Skyscraper, Locked Candidates Type 2 (Claiming) techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 4 / Column 3 → 5 (Hidden Single)
2. Row 3 / Column 7 → 7 (Hidden Single)
3. Row 7 / Column 3 → 1 (Hidden Single)
4. Row 2 / Column 2 → 1 (Hidden Single)
5. Row 2 / Column 7 → 3 (Hidden Single)
6. Row 1 / Column 5 → 1 (Hidden Single)
7. Row 7 / Column 5 → 7 (Hidden Single)
8. Row 2 / Column 9 → 4 (Hidden Single)
9. Locked Candidates Type 1 (Pointing): 6 in b2 => r3c9<>6
10. Locked Candidates Type 1 (Pointing): 8 in b8 => r8c3<>8
11. Row 9 / Column 3 → 8 (Hidden Single)
12. Row 9 / Column 2 → 7 (Hidden Single)
13. Row 9 / Column 1 → 3 (Hidden Single)
14. Row 6 / Column 2 → 3 (Hidden Single)
15. Row 3 / Column 3 → 3 (Hidden Single)
16. Row 5 / Column 4 → 3 (Hidden Single)
17. Row 5 / Column 9 → 1 (Hidden Single)
18. Row 6 / Column 4 → 1 (Hidden Single)
19. Row 5 / Column 7 → 8 (Hidden Single)
20. Row 7 / Column 9 → 8 (Hidden Single)
21. Row 4 / Column 7 → 4 (Hidden Single)
22. Row 4 / Column 2 → 9 (Naked Single)
23. Row 8 / Column 2 → 4 (Full House)
24. Row 4 / Column 4 → 8 (Naked Single)
25. Row 9 / Column 7 → 2 (Hidden Single)
26. Row 8 / Column 6 → 8 (Hidden Single)
27. Skyscraper: 9 in r5c8,r9c9 (connected by r59c5) => r6c9,r8c8<>9
28. Locked Candidates Type 1 (Pointing): 9 in b6 => r2c8<>9
29. Locked Candidates Type 2 (Claiming): 9 in r2 => r3c56<>9
30. Skyscraper: 9 in r3c9,r7c7 (connected by r37c1) => r1c7,r9c9<>9
31. Row 1 / Column 7 → 6 (Naked Single)
32. Row 7 / Column 7 → 9 (Full House)
33. Row 7 / Column 1 → 6 (Full House)
34. Row 9 / Column 9 → 5 (Naked Single)
35. Row 8 / Column 8 → 6 (Full House)
36. Row 9 / Column 5 → 9 (Full House)
37. Row 8 / Column 4 → 5 (Full House)
38. Row 2 / Column 4 → 9 (Full House)
39. Row 1 / Column 9 → 9 (Naked Single)
40. Row 2 / Column 6 → 2 (Naked Single)
41. Row 2 / Column 8 → 5 (Full House)
42. Row 3 / Column 9 → 2 (Full House)
43. Row 6 / Column 9 → 6 (Full House)
44. Row 1 / Column 3 → 4 (Naked Single)
45. Row 1 / Column 1 → 5 (Full House)
46. Row 3 / Column 1 → 9 (Full House)
47. Row 3 / Column 6 → 6 (Naked Single)
48. Row 3 / Column 5 → 5 (Full House)
49. Row 8 / Column 1 → 2 (Naked Single)
50. Row 5 / Column 1 → 4 (Full House)
51. Row 8 / Column 3 → 9 (Full House)
52. Row 4 / Column 6 → 7 (Naked Single)
53. Row 6 / Column 6 → 9 (Full House)
54. Row 5 / Column 5 → 2 (Naked Single)
55. Row 4 / Column 8 → 2 (Naked Single)
56. Row 4 / Column 5 → 6 (Full House)
57. Row 6 / Column 5 → 4 (Full House)
58. Row 5 / Column 3 → 7 (Naked Single)
59. Row 5 / Column 8 → 9 (Full House)
60. Row 6 / Column 8 → 7 (Full House)
61. Row 6 / Column 3 → 2 (Full House)