Every AI built its own chess game. Can you beat them?
Each game here, from the board and the rules to the computer opponent, was written by a different Claude model from the same brief. Pick one, make your move and see how differently they play.
Play nowThe challengers
Every model has its own engine and its own idea of a good move. Choose who to face.
Pick a game back up later
Sign in with Google or GitHub to save a game in progress and load it whenever you like. You can also play without an account.