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

This Sudoku Puzzle has 30 steps and it is solved using Naked Single, Full House, Hidden Single, Naked Pair, undefined, Give Up techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 3 → 9 (Naked Single)
2. Row 1 / Column 1 → 5 (Naked Single)
3. Row 2 / Column 2 → 7 (Naked Single)
4. Row 3 / Column 1 → 4 (Naked Single)
5. Row 1 / Column 3 → 1 (Full House)
6. Row 3 / Column 8 → 3 (Naked Single)
7. Row 1 / Column 4 → 9 (Naked Single)
8. Row 1 / Column 9 → 8 (Naked Single)
9. Row 2 / Column 5 → 5 (Naked Single)
10. Row 4 / Column 4 → 6 (Naked Single)
11. Row 1 / Column 7 → 7 (Naked Single)
12. Row 1 / Column 6 → 3 (Full House)
13. Row 2 / Column 4 → 1 (Naked Single)
14. Row 5 / Column 4 → 8 (Naked Single)
15. Row 6 / Column 5 → 9 (Naked Single)
16. Row 6 / Column 2 → 6 (Naked Single)
17. Row 6 / Column 7 → 4 (Full House)
18. Row 9 / Column 2 → 9 (Naked Single)
19. Row 5 / Column 2 → 3 (Full House)
20. Row 4 / Column 3 → 2 (Naked Single)
21. Row 5 / Column 1 → 9 (Full House)
22. Row 5 / Column 8 → 1 (Naked Single)
23. Row 5 / Column 9 → 6 (Naked Single)
24. Row 2 / Column 9 → 4 (Hidden Single)
25. Row 2 / Column 8 → 9 (Full House)
26. Row 8 / Column 3 → 5 (Hidden Single)
27. Row 7 / Column 3 → 3 (Full House)
28. Naked Pair: 6,8 in r79c7 => r8c7<>6, r8c7<>8
29. W-Wing: 6/8 in r7c7,r8c1 connected by 8 in r9c17 => r7c1<>6
30. Give Up: Don't know how to proceed!