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

This Sudoku Puzzle has 39 steps and it is solved using Locked Candidates Type 1 (Pointing), Naked Pair, Hidden Pair, Skyscraper, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Locked Candidates Type 1 (Pointing): 7 in b7 => r56c1<>7
2. Naked Pair: 5,6 in r8c36 => r8c1<>5
3. Naked Pair: 1,8 in r27c4 => r69c4<>1, r9c4<>8
4. Hidden Pair: 3,4 in r56c1 => r5c1<>2, r6c1<>1, r6c1<>5
5. Locked Candidates Type 1 (Pointing): 1 in b4 => r4c5<>1
6. Naked Pair: 3,4 in r5c16 => r5c4<>4
7. Skyscraper: 5 in r4c3,r6c6 (connected by r8c36) => r4c5,r6c2<>5
8. Row 4 / Column 5 → 2 (Naked Single)
9. Row 6 / Column 2 → 7 (Naked Single)
10. Row 5 / Column 4 → 7 (Naked Single)
11. Row 5 / Column 2 → 2 (Naked Single)
12. Row 2 / Column 2 → 5 (Full House)
13. Row 2 / Column 1 → 2 (Full House)
14. Row 6 / Column 4 → 4 (Naked Single)
15. Row 5 / Column 6 → 3 (Naked Single)
16. Row 5 / Column 1 → 4 (Full House)
17. Row 6 / Column 1 → 3 (Naked Single)
18. Row 9 / Column 4 → 2 (Naked Single)
19. Row 2 / Column 6 → 1 (Naked Single)
20. Row 2 / Column 4 → 8 (Naked Single)
21. Row 2 / Column 5 → 3 (Full House)
22. Row 7 / Column 4 → 1 (Full House)
23. Row 6 / Column 6 → 5 (Naked Single)
24. Row 6 / Column 5 → 1 (Full House)
25. Row 9 / Column 5 → 8 (Naked Single)
26. Row 7 / Column 5 → 5 (Full House)
27. Row 7 / Column 1 → 8 (Full House)
28. Row 8 / Column 6 → 6 (Naked Single)
29. Row 9 / Column 6 → 4 (Full House)
30. Row 9 / Column 7 → 7 (Naked Single)
31. Row 3 / Column 7 → 8 (Full House)
32. Row 8 / Column 9 → 8 (Full House)
33. Row 3 / Column 9 → 7 (Full House)
34. Row 8 / Column 1 → 7 (Naked Single)
35. Row 8 / Column 3 → 5 (Full House)
36. Row 9 / Column 1 → 1 (Naked Single)
37. Row 4 / Column 1 → 5 (Full House)
38. Row 4 / Column 3 → 1 (Full House)
39. Row 9 / Column 3 → 6 (Full House)