What it does
Keyless sessions use a clearly labelled synthetic mode.
Playable demos & bots
JEV SPEED
Race Jev at the card game Speed while the interface reveals its legal-move beliefs, chosen play, and pressure rating.
Recording unavailable. Open the experiment ↗
How you can use it
For your own card game, borrow the way this demo separates choosing a move from checking it. Start with a few hands where you already know which cards can be played. Ask your developer to compare the AI's choices with those answers. Keep the game's rules in ordinary code, so a wrong AI answer cannot put an illegal card on the table.