Dec 23 2025
Perfect Play against the 21+3 Extreme Blackjack Side Bet
One of the first games I posted about on this blog was the blackjack side bet Twenty One Plus Three (21+3). In this post, I showed that there was very little possible profit against 21+3, even using perfect play.
Card Counting the Upcard Luck Blackjack Side Bet
The Upcard Luck (UL) blackjack side bet is a bit wacky to describe. Payouts are based on the dealer's up-card together with the two cards the player is dealt. In this sense, it is similar to both Lucky Lucky and 21 + 3. There would certainly be intellectual property issues if this bet made it big. Right now, though, it has very few placements.
Card Counting the Over/Under 13 Blackjack Side Bet, Update #1
“Time flies like an arrow. Fruit flies like a banana.”– Unknown (not Groucho Marx)
Card Counting the Over/Under 13 Blackjack Side Bet
A long long time ago, in a casino far far away, there was a blackjack side bet called “Over/Under 13” (OU13). The player had the opportunity to wager that his two cards would total more than 13 (Over) or would total less than 13 (Under). A total of 13 lost for both wagers. These were even-money wagers, nothing fancy.
