If you’re playing 5-10 blackjack and there are more than 4 decks in use, your chances of winning aren’t as good as if there were fewer decks. Increasing the number of cards in the deck can make an honest dealer’s job harder (they have to shuffle less frequently), so they might be tempted to peek at your hand during play if they suspect you’ll bust anyway. mamasboyct.com is a great site to avail more information.
When two cards of equal rank appear during a game, most casinos will let you split them into two individual hands. The following chart shows the basic difference between hitting versus standing on various basic totals based upon what other cards have been dealt:
Hit vs. Stand for various basic totals with new decks when the dealer shows an ace and you have one card to come:
If you hit:
Your probability of winning is: Hit on a 2,3 or 4 against a dealer 3 with 10+ cards to come 72% Hit on a 12 against a dealer 3 and 9+ cards to come 99% Hit on a 5-7 against any other dealer upcard 90% Hit on 15 vs. dealers 8 or less 80%
When the player has decided to double down before being dealt their second card, they stand to lose only 50 percent as much as if they had stayed at the original bet (meaning that doubling from $5 to $10 only costs $5 if you lose). The key is that doubling your original bet after the dealer reveals their first card improves your odds of winning – when done wisely.
Late Surrender vs. Early Surrender
Late surrender allows a player to toss their hand and claim half their wager back after the dealer checks for blackjack but before seeing the dealer’s second card.
This option is not available with early surrender, which occurs immediately upon seeing an ace, regardless of what other cards are in play (the player loses everything at this point).
Keep in mind that some casinos prohibit late surrender in situations where an ace appears on the board during play.