Caribbean Stud: Raise or Fold

In Caribbean Stud you see all five of your cards and one dealer up-card, then decide to raise (bet 2× your ante) or fold. The near-optimal strategy is only about 0.001% worse than perfect play and is actually memorable.

Three rules cover everything: raise with any pair or better; fold with less than Ace-King high; and with exactly Ace-King high, raise only when the dealer's up-card matches one of your cards, or the dealer shows an Ace/King and you hold a Queen or Jack, or you hold a Queen and the up-card is unmatched and lower than your fourth-highest card. The worked hands below show each rule in action.