1. The game is usually played with one to eight decks of 52 cards.

2. The values of the cards are 9️⃣ as follows:

- Cards 2 through 10 are worth their face value.

- Face cards (J, 9️⃣ Q, K) are worth 10 points.

- Aces are worth 1 or 11 points, whichever is more beneficial 9️⃣ to the player.