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

This Sudoku Puzzle has 59 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Triple, Empty Rectangle techniques.

Try To Solve This Puzzle

Solution Steps:

1. Row 2 / Column 5 → 7 (Hidden Single)
2. Row 4 / Column 1 → 8 (Hidden Single)
3. Row 8 / Column 9 → 8 (Hidden Single)
4. Row 1 / Column 5 → 2 (Hidden Single)
5. Row 2 / Column 7 → 9 (Hidden Single)
6. Row 6 / Column 1 → 9 (Hidden Single)
7. Row 6 / Column 7 → 2 (Hidden Single)
8. Row 6 / Column 6 → 7 (Hidden Single)
9. Row 5 / Column 2 → 2 (Hidden Single)
10. Row 2 / Column 3 → 2 (Hidden Single)
11. Row 7 / Column 4 → 7 (Hidden Single)
12. Row 3 / Column 8 → 2 (Hidden Single)
13. Row 5 / Column 1 → 7 (Hidden Single)
14. Row 9 / Column 9 → 2 (Hidden Single)
15. Row 8 / Column 3 → 6 (Hidden Single)
16. Row 8 / Column 2 → 7 (Hidden Single)
17. Row 7 / Column 3 → 1 (Hidden Single)
18. Row 8 / Column 7 → 1 (Hidden Single)
19. Row 1 / Column 7 → 4 (Naked Single)
20. Row 4 / Column 7 → 3 (Full House)
21. Row 4 / Column 3 → 4 (Naked Single)
22. Row 6 / Column 3 → 3 (Full House)
23. Row 5 / Column 6 → 3 (Hidden Single)
24. Locked Candidates Type 1 (Pointing): 4 in b2 => r3c12<>4
25. Naked Triple: 3,4,9 in r7c6,r89c5 => r9c46<>4, r9c46<>9
26. Row 1 / Column 4 → 9 (Hidden Single)
27. Empty Rectangle: 4 in b8 (r67c9) => r6c5<>4
28. Row 6 / Column 5 → 5 (Naked Single)
29. Row 4 / Column 5 → 9 (Naked Single)
30. Row 4 / Column 6 → 1 (Naked Single)
31. Row 4 / Column 9 → 5 (Full House)
32. Row 5 / Column 4 → 4 (Full House)
33. Row 5 / Column 8 → 1 (Full House)
34. Row 9 / Column 6 → 6 (Naked Single)
35. Row 7 / Column 9 → 4 (Naked Single)
36. Row 3 / Column 4 → 6 (Naked Single)
37. Row 9 / Column 4 → 1 (Full House)
38. Row 1 / Column 6 → 8 (Naked Single)
39. Row 3 / Column 6 → 4 (Full House)
40. Row 7 / Column 6 → 9 (Full House)
41. Row 6 / Column 9 → 6 (Naked Single)
42. Row 2 / Column 9 → 1 (Full House)
43. Row 6 / Column 8 → 4 (Full House)
44. Row 3 / Column 1 → 3 (Naked Single)
45. Row 3 / Column 2 → 8 (Full House)
46. Row 1 / Column 2 → 5 (Naked Single)
47. Row 1 / Column 8 → 6 (Naked Single)
48. Row 1 / Column 1 → 1 (Full House)
49. Row 2 / Column 8 → 8 (Full House)
50. Row 8 / Column 1 → 4 (Naked Single)
51. Row 8 / Column 5 → 3 (Full House)
52. Row 9 / Column 5 → 4 (Full House)
53. Row 2 / Column 2 → 4 (Naked Single)
54. Row 2 / Column 1 → 6 (Full House)
55. Row 9 / Column 1 → 5 (Full House)
56. Row 7 / Column 2 → 3 (Naked Single)
57. Row 7 / Column 8 → 5 (Full House)
58. Row 9 / Column 8 → 3 (Full House)
59. Row 9 / Column 2 → 9 (Full House)