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

This Sudoku Puzzle has 24 steps and it is solved using Locked Candidates Type 2 (Claiming), Skyscraper, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Locked Candidates Type 2 (Claiming): 1 in c3 => r4c1<>1
2. Skyscraper: 1 in r3c2,r9c1 (connected by r39c9) => r1c1,r7c2<>1
3. Row 7 / Column 2 → 3 (Naked Single)
4. Row 7 / Column 4 → 1 (Full House)
5. Row 9 / Column 1 → 1 (Full House)
6. Row 8 / Column 4 → 3 (Full House)
7. Row 9 / Column 9 → 3 (Full House)
8. Row 2 / Column 9 → 2 (Naked Single)
9. Row 2 / Column 3 → 3 (Full House)
10. Row 3 / Column 9 → 1 (Full House)
11. Row 1 / Column 1 → 2 (Naked Single)
12. Row 4 / Column 1 → 3 (Full House)
13. Row 6 / Column 3 → 1 (Naked Single)
14. Row 4 / Column 3 → 2 (Full House)
15. Row 4 / Column 8 → 1 (Full House)
16. Row 6 / Column 7 → 3 (Full House)
17. Row 3 / Column 2 → 8 (Naked Single)
18. Row 1 / Column 2 → 1 (Full House)
19. Row 3 / Column 5 → 2 (Full House)
20. Row 1 / Column 5 → 8 (Full House)
21. Row 8 / Column 8 → 4 (Naked Single)
22. Row 1 / Column 8 → 3 (Full House)
23. Row 1 / Column 7 → 4 (Full House)
24. Row 8 / Column 7 → 1 (Full House)