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Master Level Queens

12×12 boards. The hardest puzzles we offer.

12×12
Grid Size
20
Total Levels
16+ min
Avg. Time
0/20
Completed
Start Playing
Pro Tips

Master Master Level

Deep analysis

Master puzzles require multi-step logical deduction.

Bifurcation

Make an assumption and trace its consequences.

Constraint propagation

Every placed queen changes all possibilities.

Stay patient

These are the hardest puzzles we offer - don't give up!

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

Hard

A real test of logic

Expert

Master level puzzles

About Master Queens

Master puzzles are the ultimate challenge — a full 12×12 board with the most demanding region configurations in the game. Only the most dedicated solvers finish these.

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 Size12×12
Average Time16+ min
Total Puzzles20