Playmakers can learn which cards are likely to be available in the draw or discard pile & which ones are still in play by keeping an eye on the cards that have been played in this manner. motherboard slotsIn order to find out which cards are still in play, players can also keep track of the cards that have been removed from the discard pile. Another important aspect of mastering the art of card counting is being able to remember which cards have been played and which ones are still in play. Players must be attentive the entire time and have a strong memory for this to work.