Super Fun 21

Super Fun 21 (sometimes called Double Diamond Blackjack) is another blackjack game variant. It is most often played with one deck, although sometimes two or six decks are used. Payouts on blackjacks are 1:1, but diamond suited blackjacks pay at 2:1.

There are a number of liberal rules which mean that the game has become very popular with players. There is a catch; if you play with standard blackjack basic strategy you effectively double the casinos edge in the game. Be sure to use our Super Fun 21 strategy card for all your playing decisions.

Rules of Super Fun 21:

• Game is played with one, two or six standard decks

• Dealer typically hits soft 17
• Player can double after any split
• Splitting up to four hands (including aces) is permitted
• Split aces can be hit or doubled
• Players can double on once per hand on any number of cards
• Late surrender is available
• Players can surrender half their stake after doubling
• Any six-card hand of 20 or less (except after doubling) automatically wins
• A five+ card 21 (except after doubling) pays at 2:1
• Player blackjacks win (no dealer push)
• Diamond blackjacks pay 2:1, all other naturals pay 1:1

After doubling players should surrender with 12-16 against dealers 8-A or with 17 against a dealer’s Ace.

House edge in the single deck game using the correct basic strategy is 1.16%. Casino advantage in the double deck game is 1.30% and 1.4% in a six deck game.