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

This Sudoku Puzzle has 57 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Pair techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 5 → 4 (Naked Single)
2. Row 5 / Column 2 → 7 (Naked Single)
3. Row 4 / Column 7 → 5 (Hidden Single)
4. Row 5 / Column 3 → 6 (Hidden Single)
5. Row 3 / Column 7 → 6 (Hidden Single)
6. Row 9 / Column 5 → 6 (Hidden Single)
7. Row 2 / Column 7 → 2 (Hidden Single)
8. Row 8 / Column 6 → 2 (Hidden Single)
9. Row 9 / Column 6 → 4 (Hidden Single)
10. Row 4 / Column 9 → 7 (Hidden Single)
11. Row 6 / Column 3 → 8 (Hidden Single)
12. Row 2 / Column 4 → 4 (Hidden Single)
13. Row 4 / Column 5 → 3 (Hidden Single)
14. Row 6 / Column 5 → 2 (Full House)
15. Row 6 / Column 9 → 4 (Hidden Single)
16. Row 6 / Column 1 → 1 (Hidden Single)
17. Locked Candidates Type 1 (Pointing): 3 in b8 => r1c4<>3
18. Locked Candidates Type 1 (Pointing): 9 in b8 => r123c5<>9
19. Locked Candidates Type 2 (Claiming): 1 in c9 => r1c7,r2c8<>1
20. Naked Pair: 3,9 in r2c26 => r2c389<>3, r2c389<>9
21. Row 2 / Column 8 → 8 (Naked Single)
22. Row 2 / Column 9 → 1 (Naked Single)
23. Row 5 / Column 8 → 1 (Naked Single)
24. Row 5 / Column 7 → 8 (Full House)
25. Row 7 / Column 9 → 8 (Hidden Single)
26. Row 1 / Column 3 → 1 (Hidden Single)
27. Row 3 / Column 5 → 1 (Hidden Single)
28. Row 8 / Column 7 → 1 (Hidden Single)
29. Row 1 / Column 7 → 3 (Hidden Single)
30. Row 3 / Column 9 → 9 (Full House)
31. Row 9 / Column 9 → 3 (Full House)
32. Row 6 / Column 7 → 9 (Naked Single)
33. Row 6 / Column 8 → 3 (Full House)
34. Row 8 / Column 8 → 9 (Full House)
35. Row 9 / Column 7 → 7 (Full House)
36. Row 9 / Column 3 → 9 (Full House)
37. Row 3 / Column 1 → 5 (Naked Single)
38. Row 3 / Column 6 → 3 (Full House)
39. Row 2 / Column 6 → 9 (Full House)
40. Row 4 / Column 3 → 2 (Naked Single)
41. Row 2 / Column 3 → 7 (Naked Single)
42. Row 2 / Column 2 → 3 (Naked Single)
43. Row 1 / Column 1 → 9 (Full House)
44. Row 2 / Column 5 → 5 (Full House)
45. Row 7 / Column 3 → 3 (Naked Single)
46. Row 8 / Column 3 → 5 (Full House)
47. Row 8 / Column 2 → 4 (Naked Single)
48. Row 4 / Column 2 → 9 (Full House)
49. Row 4 / Column 1 → 4 (Full House)
50. Row 7 / Column 4 → 7 (Naked Single)
51. Row 8 / Column 1 → 7 (Naked Single)
52. Row 7 / Column 1 → 2 (Full House)
53. Row 7 / Column 5 → 9 (Full House)
54. Row 1 / Column 4 → 8 (Naked Single)
55. Row 1 / Column 5 → 7 (Full House)
56. Row 8 / Column 5 → 8 (Full House)
57. Row 8 / Column 4 → 3 (Full House)