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

This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Hidden Single, Full House, Naked Pair, undefined techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 2 / Column 7 → 2 (Naked Single)
2. Row 3 / Column 7 → 9 (Naked Single)
3. Row 8 / Column 7 → 1 (Hidden Single)
4. Row 1 / Column 3 → 2 (Hidden Single)
5. Row 4 / Column 9 → 2 (Hidden Single)
6. Row 8 / Column 8 → 3 (Hidden Single)
7. Row 1 / Column 2 → 9 (Hidden Single)
8. Row 4 / Column 5 → 4 (Hidden Single)
9. Row 4 / Column 3 → 7 (Hidden Single)
10. Row 2 / Column 3 → 6 (Naked Single)
11. Row 2 / Column 1 → 3 (Naked Single)
12. Row 4 / Column 1 → 5 (Naked Single)
13. Row 4 / Column 7 → 3 (Full House)
14. Row 6 / Column 7 → 5 (Full House)
15. Row 3 / Column 1 → 1 (Naked Single)
16. Row 3 / Column 3 → 5 (Naked Single)
17. Row 6 / Column 1 → 9 (Naked Single)
18. Row 5 / Column 2 → 3 (Hidden Single)
19. Row 5 / Column 8 → 9 (Hidden Single)
20. Row 8 / Column 3 → 9 (Hidden Single)
21. Row 9 / Column 9 → 9 (Hidden Single)
22. Row 7 / Column 9 → 5 (Naked Single)
23. Row 8 / Column 9 → 7 (Naked Single)
24. Row 5 / Column 3 → 8 (Hidden Single)
25. Row 6 / Column 3 → 1 (Full House)
26. Row 7 / Column 5 → 9 (Hidden Single)
27. Row 5 / Column 5 → 1 (Hidden Single)
28. Naked Pair: 2,6 in r9c18 => r9c46<>2, r9c46<>6
29. W-Wing: 7/4 in r1c8,r3c2 connected by 4 in r2c29 => r3c8<>7
30. Row 1 / Column 8 → 7 (Hidden Single)
31. Row 1 / Column 5 → 5 (Naked Single)
32. Row 1 / Column 6 → 3 (Naked Single)
33. Row 1 / Column 4 → 4 (Full House)
34. Row 6 / Column 4 → 3 (Hidden Single)
35. W-Wing: 6/7 in r3c4,r6c6 connected by 7 in r9c46 => r3c6<>6
36. Row 3 / Column 4 → 6 (Hidden Single)
37. Row 9 / Column 4 → 7 (Hidden Single)
38. Row 9 / Column 6 → 5 (Naked Single)
39. Row 5 / Column 6 → 2 (Naked Single)
40. Row 5 / Column 4 → 5 (Full House)
41. Row 8 / Column 4 → 2 (Naked Single)
42. Row 7 / Column 4 → 1 (Full House)
43. Row 9 / Column 2 → 1 (Naked Single)
44. Row 8 / Column 1 → 6 (Naked Single)
45. Row 9 / Column 1 → 2 (Full House)
46. Row 9 / Column 8 → 6 (Full House)
47. Row 7 / Column 8 → 2 (Full House)
48. Row 7 / Column 2 → 8 (Naked Single)
49. Row 7 / Column 6 → 6 (Full House)
50. Row 8 / Column 5 → 8 (Full House)
51. Row 8 / Column 2 → 5 (Full House)
52. Row 6 / Column 6 → 7 (Naked Single)
53. Row 3 / Column 6 → 8 (Full House)
54. Row 2 / Column 5 → 7 (Full House)
55. Row 6 / Column 5 → 6 (Full House)
56. Row 3 / Column 8 → 4 (Naked Single)
57. Row 2 / Column 9 → 8 (Full House)
58. Row 2 / Column 2 → 4 (Full House)
59. Row 3 / Column 2 → 7 (Full House)
60. Row 6 / Column 8 → 8 (Full House)
61. Row 6 / Column 9 → 4 (Full House)