https://github.com/lk16/chessbot

Simple implementation of a chess-playing program
https://github.com/lk16/chessbot

chess-engine educational twitch

Last synced: 3 months ago
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Simple implementation of a chess-playing program

• Host: GitHub
• URL: https://github.com/lk16/chessbot
• Owner: lk16
• License: bsd-3-clause
• Created: 2022-06-11T15:17:28.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-09-25T18:41:47.000Z (over 2 years ago)
• Last Synced: 2023-03-31T05:18:05.421Z (almost 2 years ago)
• Topics: chess-engine, educational, twitch
• Language: Python
• Homepage:
• Size: 63.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Chess bot

In this repo we create a chess bot. This is a project that is developed on my [twitch stream](https://twitch.tv/thebigmerp).

Initially the aim of this stream is to show people without programming experience how something like this is done.

## Streams

Every last commit after a stream ends gets a tag. That way progress can be seen here while watching the streams back.

#### [stream-01](https://github.com/lk16/chessbot/tree/stream-01)

- Setup repo (off-stream)

- Added `Board` class

- Printing a board in black/white

#### [stream-02](https://github.com/lk16/chessbot/tree/stream-01)

- Add colorized board printing (off-stream)

- Add moves for king, knight, rook, bishop and queen

#### [stream-03](https://github.com/lk16/chessbot/tree/stream-03)

- Add all pawn moves, including promotion, capturing and "en passent"

#### [stream-04](https://github.com/lk16/chessbot/tree/stream-04)

- Add Board/FEN conversion (off-stream)

- Bugfix: capture and promote at the same time

- Detect check

- Castling

- Prevent moves that put yourself in check

#### [stream-05](https://github.com/lk16/chessbot/tree/stream-05)

- Debug opening tree sizes using [Chessnut](https://github.com/cgearhart/Chessnut)

- Implement "en passent" correctly

- Build a bot that plays random moves

- Play bot vs bot

- Fix bug: king can capture other king

- Detect game endings

#### [stream-06](https://github.com/lk16/chessbot/tree/stream-06)

- Implement tree-search using minimax

- Add smarter bots `MaterialBot` and `PawnPusherBot`

- Fix assertion bug in `Game`

### See also

Future features and fixes can be found in the [TODO](./TODO.md) file.

## Links to used resources

- [Chess unicode symbols wiki](https://en.wikipedia.org/wiki/Chess_symbols_in_Unicode)

- [Chessboard editor](https://lichess.org/editor)

- [Chess opening tree sizes](https://www.chessprogramming.org/Perft_Results)

- [Chess FEN notation wiki](https://en.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation)

- [Chess library Chessnut](https://github.com/cgearhart/Chessnut) (removed from repo, was only used for debugging)