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

This Sudoku Puzzle has 59 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Triple techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 8 / Column 1 → 9 (Naked Single)
2. Row 8 / Column 3 → 4 (Naked Single)
3. Row 7 / Column 2 → 3 (Full House)
4. Row 9 / Column 2 → 3 (Full House)
5. Row 4 / Column 8 → 8 (Hidden Single)
6. Row 3 / Column 2 → 1 (Hidden Single)
7. Row 9 / Column 9 → 8 (Hidden Single)
8. Row 2 / Column 1 → 8 (Hidden Single)
9. Row 2 / Column 9 → 3 (Hidden Single)
10. Row 9 / Column 8 → 1 (Hidden Single)
11. Row 1 / Column 4 → 8 (Hidden Single)
12. Locked Triple: 4,5,6 in r7c456 => r7c7,r9c456<>4, r7c7<>5, r7c7<>6
13. Row 7 / Column 7 → 6 (Naked Single)
14. Row 7 / Column 4 → 4 (Naked Single)
15. Row 8 / Column 9 → 5 (Naked Single)
16. Row 8 / Column 7 → 2 (Full House)
17. Row 8 / Column 8 → 2 (Full House)
18. Row 7 / Column 5 → 5 (Naked Single)
19. Row 7 / Column 6 → 5 (Naked Single)
20. Row 9 / Column 7 → 4 (Naked Single)
21. Row 3 / Column 8 → 5 (Hidden Single)
22. Row 1 / Column 8 → 9 (Naked Single)
23. Row 1 / Column 7 → 7 (Naked Single)
24. Row 2 / Column 7 → 7 (Naked Single)
25. Row 6 / Column 8 → 4 (Naked Single)
26. Row 1 / Column 3 → 5 (Naked Single)
27. Row 3 / Column 9 → 4 (Naked Single)
28. Row 2 / Column 3 → 9 (Naked Single)
29. Row 2 / Column 2 → 2 (Naked Single)
30. Row 2 / Column 4 → 2 (Naked Single)
31. Row 6 / Column 3 → 7 (Naked Single)
32. Row 4 / Column 3 → 1 (Full House)
33. Row 5 / Column 3 → 1 (Full House)
34. Row 1 / Column 2 → 6 (Naked Single)
35. Row 1 / Column 5 → 3 (Full House)
36. Row 1 / Column 6 → 3 (Full House)
37. Row 3 / Column 1 → 7 (Full House)
38. Row 2 / Column 6 → 4 (Naked Single)
39. Row 5 / Column 1 → 6 (Naked Single)
40. Row 6 / Column 9 → 6 (Naked Single)
41. Row 5 / Column 9 → 7 (Full House)
42. Row 4 / Column 7 → 9 (Naked Single)
43. Row 5 / Column 7 → 5 (Full House)
44. Row 6 / Column 7 → 5 (Full House)
45. Row 4 / Column 1 → 3 (Naked Single)
46. Row 6 / Column 1 → 2 (Full House)
47. Row 6 / Column 5 → 9 (Naked Single)
48. Row 5 / Column 4 → 9 (Naked Single)
49. Row 5 / Column 6 → 9 (Naked Single)
50. Row 3 / Column 5 → 6 (Full House)
51. Row 3 / Column 4 → 6 (Full House)
52. Row 3 / Column 6 → 6 (Full House)
53. Row 4 / Column 2 → 4 (Naked Single)
54. Row 9 / Column 5 → 7 (Full House)
55. Row 4 / Column 6 → 7 (Full House)
56. Row 4 / Column 5 → 7 (Full House)
57. Row 6 / Column 2 → 9 (Naked Single)
58. Row 9 / Column 4 → 7 (Naked Single)
59. Row 9 / Column 6 → 2 (Naked Single)