High Low Chicago is a variation of Seven Card Stud poker game where the pot is split between the player with the highest-ranking hand (High), the player with the lowest-ranking hand (Low), and a predetermined part of the pot goes to a player who has the Jack of Hearts (Chicago).

The game is played with a standard deck of 52 cards, and up to 8 players can participate. Each player is dealt 7 cards throughout the game, with the first two cards dealt face down, and the rest of the cards dealt face up.

The game begins with the first betting round after the two initial cards are dealt. Then, three more cards are dealt face up to each player, followed by another betting round. This is repeated until each player has a total of 7 cards, with the final card dealt face down.

After the final round of betting, the players reveal their hands, and the pot is divided into three parts – High, Low, and Chicago.

The player with the highest-ranking hand wins the High pot, while the player with the lowest-ranking hand wins the Low pot. However, for the low pot, players must have a hand with no pairs, and the Ace can be used as the lowest card, making the best possible Low hand A-2-3-4-5.

The Chicago pot is won by the player who has the Jack of Hearts in their hand. If no player has the Jack of Hearts, then the Chicago pot goes unclaimed.

Overall, High Low Chicago is an exciting and challenging variation of Seven Card Stud that requires players to carefully strategize their moves and make use of bluffing tactics. It is a popular game among both beginners and experienced poker players.