In blackjack, splitting up can be good to do. Like doubling down, splitting is a powerful tool for blackjack players who want to increase their winnings. And, like doubling down, splitting your cards gives you a chance to increase your bet in the middle of the hand that you are playing. You can only split two cards of the same value, and there are times when you shouldn't split. In this chapter, you'll learn what cards you can split and when you should split them.