If NDAS, Split against a dealer's upcard of 3, 4, 5, 6 or 7 otherwise hit.In a single-deck game, the basic playing strategy is: If the playing rules allow doubling down after pair splitting (DAS), you should also split against a dealer’s upcard of 2 and 3.split 2s against a dealer’s 4, 5, 6 or 7 otherwise hit.The basic playing strategy for a double- or multi-deck game where doubling down after pair splitting is not allowed (NDAS) is to: Why Not Mimic the Dealer's Playing Strategy?.How to Play Your 16 against Dealer's 10 Upcard.Which strategy you should invoke depends upon what the dealer’s upcard is, the number of decks of cards being used, and whether double down after pair splitting is allowed.
When you are playing blackjack and dealt a pair of 2s (also known as “deuces”), you have two viable playing options:
