Busting occurs when a stacks total value exceeds 21, resulting in a loss. The goal is to make each stacks total value as close to 21 as possible without busting. Players are dealt a set of cards and must place them onto one of four stacks. You have four slots for stacks, and the only ways to clear a stack are by using a wild blackjack card, which instantly clears any stack you pick, or. During a game, you can win points by taking cards from your deck and building stacks. Welcome to the official ``21 Blitz: Single Player`` experience! Blackjack meets Solitaire a perfect challenge for aspiring card counters.Ī game may only take a few minutes to play but you`ll be setting high scores for hours! Enjoy a casual experience or reach a competitive level of play.