Free to playCustomize decksNo account needed

Stupid
chess

Chess, but cards let you change the rules. Play live with a friend in seconds.

New here? Try the tutorial.

Play anywhere.
Install nothing.

Nothing to download. Stupidchess runs in the browser on your phone, tablet, or laptop.

  1. 01

    Start a room

    Hit Play now and you get a fresh board with its own link.

  2. 02

    Send the link

    Your friend opens it on any device. No account, no download.

  3. 03

    Play your cards

    Move pieces, play cards, and watch the rules bend under both of you.

Create a room
Beyond the first game

Learn it. Play it. Break it.

Get the hang of it fast

A hands-on tutorial on a real board walks you from your first move to your first card and checkmate. The full rules are a click away.

Try the tutorial

Take on the robot

Not ready for a human? The bot plays black, thinks a few moves ahead, and is happy to lose slowly while you find your footing.

Play a bot

Build a deck that fights dirty

Pick 52 cards from the full catalog, sort and search the collection, then bring your own rulebook to the table. Every deck is a different game.

Open the deck builder

Replay the chaos

Every game keeps a full move-and-card history. Scrub back to the turn where it all went sideways.

Browse your games
On the way

More ways to play.

Coming soon

Phone and tablet apps

Stupidchess as an app for your phone and tablet is on the way. Until then, the browser version plays on any of them, nothing to install.

Coming soon

Cards you can hold

A printed deck to play over a real chessboard, no screen needed. Until then, your deck runs on one screen beside the board you already own.

Grab a friend. Break the rules.

Pick a deck and find out what chess feels like when the rules keep shifting under both of you.

Free to play. Customize decks. No account needed.