Yes, this game presupposes you know poker hands and chess moves. I was never very happy with that as a prerequisite, but I wasn't sure how to add an explainer that wasn't just a boring text box.
As for the speed issue that everyone else also mentioned: This is the biggest weakness of game-jams: no time to play-test. I tuned the speed to what I was comfortable with, but that's stupid. I'm the dev and I know the game too well. It should be tuned a lot slower. Thanks for pointing this out!