It is not a typo that the player should triple down on a blackjack, against a dealer six, in the six-deck game. The following three charts show the basic strategy for one, two, and six decks. Double after split may or may not be allowed, depending on the casino.Player may double on any initial two-card hand.Player may re-split any equal-valued cards, including aces, up to four hands.Tripling on a blackjack with one and two decks may also be allowed, depending on the casino. With one deck, tripling up is restricted to hard totals of 10 and 11. With two decks, tripling up is restricted to hard totals of 9 to 11. With six decks, the player may triple up on any initial two-card hand. Player may triple up (triple his bet) on certain initial two-card hands.In any game, ask the dealer about the rules if you are not sure. This is at the cost of blackjack paying even money, including blackjack ties.Ĭontrary to what the rule cards may say, the following are the rules of Triple Up 21. It allows the player to triple up (or 'triple down' if you prefer) in some situations. Triple Up 21 is a blackjack variant found at a few casinos in Las Vegas.

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