The plays shown in this basic strategy table are commonly recognized as correct for a four-deck game. However, for ease of use while sacrificing very little on accuracy, this strategy is recommended for any number of decks. Generally, it will reduce the casino advantage to less than 1% over the long run.

The correct play is found where your hand initially consisting of 2 cards, intersects with the dealer's up card.

From 12 to 17+ stand or hit as indicated regardless of the number of cards you have. If your hand is made of 2 cards, play according to the table. If you Hit and now have 3 or more cards, doubling down is not allowed.

Also, some casinos permit doubling down on 10 and 11 only. Hit when you can't double down with the exeption of standing on a A,7 against a dealer 3-6. Doubling down after splitting and surrender are not always permitted so check with the dealer on house rules.