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Hard Level Queens

10×10 boards for players who want a serious workout.

10×10
Grid Size
90
Total Levels
10-13 min
Avg. Time
0/90
Completed
Start Playing
Pro Tips

Master Hard 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

Challenging

For experienced players

Expert

Master level puzzles

Master

The ultimate challenge

About Hard Queens

Hard puzzles run on a 10×10 board with intricate region shapes. This is also where the daily puzzle is drawn from — expect a genuine test of logic every time.

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 Size10×10
Average Time10-13 min
Total Puzzles90