A check-raise or check raise, involves the action of starting off with a check and then raising a bet from your opponent.
A check-raise is a highly strategic decision. Players check in the hopes of getting their opponent to bet out, and if they do, they take this opportunity to put in a check-raise.
Doing this can be very effective if you have a strong hand. For example, if you have pocket aces, doing a check-raise move can help you trick your opponents as it affects their perspective and tricks them into thinking you don’t have such a strong hand.