One queen per row, column and colored region. No two touching.
Drag to mark × • Double-click/tap to place ♕
Queens is a free logic puzzle in the spirit of the classic n-queens problem. On an 8×8 board split into eight colored regions, place exactly one queen in every row, every column and every region so that no two queens ever touch — not even diagonally. Every puzzle is procedurally generated and guaranteed to have exactly one solution.
Knight mode is a different puzzle: place one knight (♞) per row, column and colored region so that no knight attacks another with a chess knight's move (an L-shape: two squares one way, one square the other). There is no diagonal-touch rule here — only knight moves matter.
Is Queens free?
Yes. It is completely free, works offline as an installable app and needs no account.
What is the daily challenge?
One shared puzzle per day. Solving it on consecutive days builds your streak.
What are career ranks?
You earn XP for every solved puzzle and climb from Novice all the way to Empress.
You solved the puzzle.