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

This Sudoku Puzzle has 53 steps and it is solved using Naked Single, Hidden Single, Locked Pair, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 4 → 1 (Naked Single)
2. Row 6 / Column 3 → 8 (Naked Single)
3. Row 2 / Column 6 → 6 (Hidden Single)
4. Row 7 / Column 9 → 8 (Hidden Single)
5. Row 1 / Column 8 → 8 (Hidden Single)
6. Locked Pair: 8,9 in r5c56 => r46c5,r5c18<>9
7. Locked Pair: 1,2 in r9c78 => r8c79,r9c49<>2, r8c79,r9c69<>1
8. Row 9 / Column 4 → 4 (Naked Single)
9. Row 1 / Column 4 → 2 (Full House)
10. Row 8 / Column 7 → 9 (Naked Single)
11. Row 8 / Column 5 → 2 (Hidden Single)
12. Row 1 / Column 6 → 4 (Hidden Single)
13. Row 8 / Column 6 → 1 (Hidden Single)
14. Row 1 / Column 5 → 5 (Hidden Single)
15. Row 7 / Column 5 → 9 (Naked Single)
16. Row 7 / Column 6 → 5 (Full House)
17. Row 9 / Column 6 → 3 (Full House)
18. Row 5 / Column 5 → 8 (Naked Single)
19. Row 3 / Column 6 → 8 (Naked Single)
20. Row 5 / Column 6 → 9 (Full House)
21. Row 1 / Column 9 → 1 (Hidden Single)
22. Row 2 / Column 7 → 2 (Naked Single)
23. Row 9 / Column 7 → 1 (Full House)
24. Row 3 / Column 9 → 3 (Naked Single)
25. Row 2 / Column 9 → 9 (Full House)
26. Row 9 / Column 8 → 2 (Naked Single)
27. Row 3 / Column 5 → 1 (Naked Single)
28. Row 2 / Column 5 → 3 (Full House)
29. Row 3 / Column 3 → 2 (Full House)
30. Row 6 / Column 9 → 4 (Naked Single)
31. Row 5 / Column 8 → 3 (Naked Single)
32. Row 2 / Column 2 → 8 (Naked Single)
33. Row 4 / Column 3 → 3 (Naked Single)
34. Row 4 / Column 9 → 2 (Naked Single)
35. Row 6 / Column 5 → 6 (Naked Single)
36. Row 4 / Column 5 → 4 (Full House)
37. Row 4 / Column 8 → 9 (Naked Single)
38. Row 4 / Column 1 → 6 (Full House)
39. Row 6 / Column 8 → 1 (Full House)
40. Row 6 / Column 1 → 9 (Full House)
41. Row 5 / Column 3 → 5 (Naked Single)
42. Row 5 / Column 1 → 2 (Full House)
43. Row 2 / Column 1 → 4 (Naked Single)
44. Row 2 / Column 3 → 1 (Full House)
45. Row 8 / Column 3 → 4 (Full House)
46. Row 9 / Column 2 → 6 (Naked Single)
47. Row 1 / Column 1 → 3 (Naked Single)
48. Row 1 / Column 2 → 9 (Full House)
49. Row 8 / Column 2 → 3 (Full House)
50. Row 9 / Column 9 → 5 (Naked Single)
51. Row 8 / Column 9 → 6 (Full House)
52. Row 8 / Column 1 → 5 (Full House)
53. Row 9 / Column 1 → 8 (Full House)