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

This Sudoku Puzzle has 38 steps and it is solved using Naked Triple, Naked Single, Hidden Pair, undefined, Skyscraper, Full House, Hidden Single techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Naked Triple: 1,7,9 in r8c149 => r8c37<>1, r8c37<>7, r8c37<>9
2. Naked Triple: 3,4,9 in r158c7 => r3c7<>3, r369c7<>9
3. Row 3 / Column 7 → 7 (Naked Single)
4. Hidden Pair: 3,4 in r7c8,r8c7 => r7c8<>9
5. X-Wing: 4 r58 c37 => r47c3<>4
6. X-Wing: 9 c14 r68 => r6c8,r8c9<>9
7. Skyscraper: 1 in r4c6,r8c4 (connected by r48c9) => r6c4,r7c6<>1
8. Row 6 / Column 4 → 9 (Naked Single)
9. Row 4 / Column 6 → 1 (Full House)
10. Row 7 / Column 6 → 9 (Full House)
11. Row 8 / Column 4 → 1 (Full House)
12. Row 6 / Column 1 → 7 (Naked Single)
13. Row 8 / Column 1 → 9 (Full House)
14. Row 8 / Column 9 → 7 (Naked Single)
15. Row 6 / Column 8 → 6 (Naked Single)
16. Row 6 / Column 7 → 1 (Full House)
17. Row 9 / Column 2 → 8 (Naked Single)
18. Row 4 / Column 9 → 9 (Naked Single)
19. Row 9 / Column 8 → 9 (Naked Single)
20. Row 9 / Column 7 → 6 (Naked Single)
21. Row 4 / Column 3 → 2 (Naked Single)
22. Row 5 / Column 7 → 4 (Naked Single)
23. Row 4 / Column 8 → 7 (Full House)
24. Row 4 / Column 2 → 4 (Full House)
25. Row 5 / Column 3 → 9 (Full House)
26. Row 9 / Column 9 → 1 (Naked Single)
27. Row 7 / Column 9 → 8 (Full House)
28. Row 9 / Column 3 → 7 (Full House)
29. Row 3 / Column 8 → 3 (Naked Single)
30. Row 1 / Column 7 → 9 (Full House)
31. Row 8 / Column 7 → 3 (Full House)
32. Row 7 / Column 8 → 4 (Full House)
33. Row 1 / Column 2 → 3 (Full House)
34. Row 8 / Column 3 → 4 (Full House)
35. Row 7 / Column 2 → 3 (Naked Single)
36. Row 3 / Column 3 → 3 (Naked Single)
37. Row 7 / Column 3 → 1 (Naked Single)
38. Row 3 / Column 2 → 2 (Hidden Single)