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Challenging Level Queens

For experienced players seeking a real challenge.

9×9
Grid Size
60
Total Levels
8-10 min
Avg. Time
0/60
Completed
Start Playing
Pro Tips

Master Challenging Level

Advanced elimination

Consider multiple constraints simultaneously.

Chain reasoning

If A is a queen, then B must be, which means C can't be...

Backtracking

Sometimes you need to try a path and undo if it fails.

Edge cases

Pay special attention to corner and edge cells.

Explore Other Difficulties

Novice

Your very first puzzles

Beginner

Perfect for beginners

Easy

A gentle step up

Casual

A balanced challenge

Medium

For developing strategists

Hard

A real test of logic

Expert

Master level puzzles

Master

The ultimate challenge

About Challenging Queens

Challenging difficulty is designed for experienced puzzle solvers. These 9×9 puzzles require advanced pattern recognition and strategic thinking to complete.

Game Rules

  • Each row must have exactly one queen.
  • Each column must have exactly one queen.
  • Each color region must have exactly one queen.
  • Queens cannot touch, not even diagonally.

Difficulty Info

Grid Size9×9
Average Time8-10 min
Total Puzzles60