The Game of 21

This is the dealer and a few innocent bystanders

Lets play a game of 21. The rules are as follows: A sum greater than 21 determines the other player automatically wins the round. If both players are over 21, no one wins. If neither sum is over 21, the player closest to 21 without going over wins the game. A tie game, no one wins. A player getting 21 wins.

This is the player