Frequently Asked Questions
Everything you need to know about Queens.
What is the queens puzzle?
The queens puzzle is a logic puzzle played on a coloured grid. Place one queen in each row, column, and coloured region, making sure no two queens touch — not even diagonally. Every puzzle has exactly one solution, solvable through pure logic.
Is reina like Sudoku?
Both are grid-based logic puzzles with a single solution and no guessing. But reina is more spatial — instead of filling numbers, you're placing queens and reasoning about adjacency. If you like Sudoku, you'll probably enjoy reina too.
What is reina?
It's a queens placement puzzle app. Place one queen per row, column, and coloured region — no two touching. Over 340 puzzles, daily challenges, no ads.
How do I play?
Tap a cell to place a queen. Tap again to mark it as excluded. Tap once more to clear it. Place one queen in each row, column, and coloured region, with no two queens adjacent. There's an interactive tutorial in the app.
Is there any guessing involved?
No. Every puzzle has exactly one solution, reachable through logic alone. If you're stuck, there's a deduction you haven't spotted yet — try the hints.
What are the daily challenges?
Every day you get fresh puzzles across multiple difficulties. Complete them to maintain your streak. Daily puzzles are the same for everyone worldwide.
How do hints work?
Hints guide you toward the solution without spoiling it. The first hint highlights any errors. Further hints help you find the next logical move.
Does it work offline?
Yes! All puzzles are included in the app. Play anywhere without an internet connection.
What grid sizes are available?
Puzzles range from 5x5 (beginner) to 9x9 (expert). Larger grids have more regions and queens, making them significantly more challenging.
Is there advertising?
No. reina has no ads, no interruptions, and no in-app purchases. Just puzzles.
What devices are supported?
reina is available for both iOS and Android.