Comment by sesky

If you consume any chess media, you would know there's a fair amount of crossover in chess players who enjoy playing poker.

That is because although chess appears to be a game of perfect information, it is impossible to calculate anything but a small fraction of possible future game states in a limited time. So skilled chess players must make educated guesses as to which lines are worth calculating, whether their opponent has already studied the current line, and what moves to play to get them out of their memorization.

This is effectively a game of limited information where solid Bayesian reasoning wins, just like poker.