N-Queens

A game for the flight: works without internet

N-Queens is great for a long flight, a road trip, or anywhere with no signal. Get ready once, before you leave:

1. While you have internet, open the site.
2. Tap "Get ready for a flight" and wait for the "Ready for the flight!" message.
3. On iPhone: add the site to your home screen so the games are not cleared.
4. On the plane, in airplane mode, open N-Queens and play: no network, no ads.

Can I play N-Queens without internet?

Yes. While you are online, open the site and tap "Get ready for a flight". All the games are saved on your device, and from then on N-Queens works in airplane mode, with no network, no ads and no sign-up.

How to play

Tap a square to place a queen (tap it again to remove it). A queen "attacks" its whole row, column and diagonals. Put a queen in every row so that no two queens attack each other.

Why it is good for kids

N-Queens is a logic puzzle for ages 10–99+ that trains Working with constraints, Spatial thinking, Planning ahead. It has 7 difficulty levels, so a child can start easy and move up at their own pace.

It is free, with no ads popping up mid-game, no sign-up and no chat. It also works without internet: before a flight or a trip, tap "Get ready for a flight" on the site and the games are saved on the device.

It can be played with the keyboard alone and with a screen reader.

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