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

This Sudoku Puzzle has 41 steps and it is solved using Naked Single, Full House, Hidden Single, Uniqueness Test 1 techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 4 / Column 6 → 5 (Naked Single)
2. Row 6 / Column 2 → 9 (Naked Single)
3. Row 7 / Column 3 → 1 (Naked Single)
4. Row 8 / Column 4 → 9 (Naked Single)
5. Row 2 / Column 4 → 7 (Full House)
6. Row 5 / Column 6 → 7 (Naked Single)
7. Row 9 / Column 5 → 3 (Naked Single)
8. Row 9 / Column 2 → 7 (Full House)
9. Row 4 / Column 5 → 6 (Naked Single)
10. Row 6 / Column 5 → 1 (Full House)
11. Row 6 / Column 9 → 5 (Full House)
12. Row 8 / Column 3 → 2 (Naked Single)
13. Row 8 / Column 6 → 8 (Naked Single)
14. Row 2 / Column 6 → 9 (Full House)
15. Row 7 / Column 5 → 4 (Full House)
16. Row 7 / Column 2 → 3 (Naked Single)
17. Row 7 / Column 8 → 7 (Full House)
18. Row 8 / Column 1 → 6 (Full House)
19. Row 3 / Column 3 → 9 (Naked Single)
20. Row 4 / Column 3 → 4 (Full House)
21. Row 4 / Column 1 → 2 (Naked Single)
22. Row 4 / Column 7 → 8 (Full House)
23. Row 2 / Column 1 → 4 (Naked Single)
24. Row 5 / Column 1 → 3 (Full House)
25. Row 5 / Column 2 → 6 (Full House)
26. Row 1 / Column 8 → 8 (Hidden Single)
27. Row 5 / Column 9 → 4 (Hidden Single)
28. Uniqueness Test 1: 1/2 in r2c78,r5c78 => r2c8<>1, r2c8<>2
29. Uniqueness Test 1: 1/3 in r2c89,r8c89 => r2c8<>3
30. Row 2 / Column 8 → 5 (Naked Single)
31. Row 2 / Column 2 → 2 (Naked Single)
32. Row 1 / Column 2 → 5 (Full House)
33. Row 1 / Column 5 → 2 (Full House)
34. Row 3 / Column 5 → 5 (Full House)
35. Row 3 / Column 8 → 2 (Full House)
36. Row 2 / Column 7 → 1 (Naked Single)
37. Row 2 / Column 9 → 3 (Full House)
38. Row 5 / Column 7 → 2 (Full House)
39. Row 5 / Column 8 → 1 (Full House)
40. Row 8 / Column 9 → 1 (Full House)
41. Row 8 / Column 8 → 3 (Full House)