11×11 Queens puzzles

Large, tricky boards for players who know the techniques. Place 11 queens: one per row, column and color region, none touching.

1. #1Hard
2. #2Expert
3. #3Hard
4. #4Hard
5. #5Hard
6. #6Medium
7. #7Medium
8. #8Medium
9. #9Medium
10. #10Hard
11. #11Hard
12. #12Medium
13. #13Easy
14. #14Hard
15. #15Easy
16. #16Easy
17. #17Hard
18. #18Medium
19. #19Easy
20. #20Hard
21. #21Easy
22. #22Medium
23. #23Medium
24. #24Easy
25. #25Medium
26. #26Hard
27. #27Easy
28. #28Medium
29. #29Hard
30. #30Easy

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