The card game Hearts implemented in Go.

Nothing working yet. Building core game logic.

For now, go run hearts.go from the project root to run the client (unfinished) or make test to run test suites.

Generally speaking, the goal is to strengthen my knowledge of Go and have some practical example code to refer to. Ideally I'd like to end up with a suite of unit tests that could be used as a starting point for implementing Hearts in other programming languages, and a sophisticated enough version of the game that I can play it for fun.

1. Core game logic
2. Command-line interface with bots that play random moves
3. Event sourcing with Postgres
4. HTTP service backend
5. HTML+JS frontend

Many more will occur to me as development progresses.

• Frontend tech improvements: TypeScript, React, Redux
• Stand-alone desktop version (Gtk?)
• Mobile client (React Native?)

Developing a sophisticated AI for playing Hearts is not a priority, but it would be a shame not to put some effort into having bots that are fun to play against (at least at a novice level.)

In increasing levels of sophistication, I may attempt the following:

• Chaos Bot - plays a random, legal move each turn
• Always Low Bot - plays the lowest card available, plays points cards when they have a void
• Naive Greedy Bot - tries to surrender control while discarding the highest cards they can, uses table history to recognize which suits are safer to lead
• Greedy Bot - work in some probability methods to evaluate plays, recognize when a shoot the moon is likely and be able to play in that situation
• A* Search Bot - (very unlikely to get this far), classical AI methods: use probability to score the best move on each turn with look-ahead search for a few rounds (branching factor too high?), with heuristics to shortcut evaluation of common scenarios and ideally an opening book
• Neural Net AI Bot - (very unlikely to get this far), modern AI methods: train a neural network on a large history of Hearts games and be able to identify strong moves