blackjack

Text-based blackjack game built with Go.

Run

To play the game:

go run ./cmd/game/main.go

Rules

Rules used for this version of blackjack:

• Dealer hits soft 17
• Natural blackjacks pay 3:2
• Late surrender is allowed
• Cannot surrender after split
• Double down is allowed
• Double after split is allowed
• Multiple splits are allowed
• Insurance is not available

Computer AIs

Computer AIs can be added to the game using command-line flags.

Random AI

Flag: -random-ai

Uses a random number generator to either hit or stay on every move.

Standard AI

Flag: -standard-ai

Plays using a standard blackjack strategy.

Strategy Resources:

• https://wizardofodds.com/games/blackjack/strategy/4-decks
• https://www.blackjackapprenticeship.com/blackjack-strategy-charts

Machine AI

Flag: -machine-ai

Makes decisions based on a model trained using XGBoost. See README.

NOTE: This is still experimental.

Links

• https://en.wikipedia.org/wiki/Playing_cards_in_Unicode
• https://bicyclecards.com/how-to-play/blackjack
• https://www.888casino.com/blog/blackjack-strategy-guide/how-to-play-blackjack