OK, so take a game of blackjack, but if you win with 5 or more cards in your hand, you win double what you normally would.
How would I go about adapting basic strategy to account for this? My thinking is that adapting to anything when you have <= 3 cards is likely neutral / negligible, so essentially I would simply have a seperate strategy table to use for situations where I have exactly 4 cards in my hand. What sorts of changes would I make?
If you need a specific ruleset: 6 decks Dealer doesnt peek double any 2 cards double after split is OK no surrender no resplitting split aces get 1 card only