I'm assuming that you're asking about Boardgame Lab (from the other comment). The basic version just uses Monte Carlo Tree Search and the game's victory condit

I'm assuming that you're asking about Boardgame Lab (from the other comment). The basic version just uses Monte Carlo Tree Search and the game's victory condition to play the game. This won't result in a very strong bot for most games, but is a reasonable opponent to play your game against (which is very useful when designing a game). Options to make the bot stronger involve giving it hints and shorter term objectives.