# How to interact with stockfish running in docker

Build the container `stockfish:15`:

```sh
make build
```

Create a file called `stockfish` with the following contents (one is included in this repo):

```sh
#!/bin/sh
nc localhost 23249
```

Give it executable permissions with:
```
chmod +x stockfish
```

Now you can run the following to start stockfish:
```
make start
```

This will start a stockfish instance that will listen on port 23249 for commands.

You can now run `./stockfish` to interact with the stockfish instance.

```
./stockfish
uci
isready
quit
```

More examples of stockfish engine interaction are:
```
./stockfish
uci
isready
ucinewgame
position startpos moves e2e4 e7e5 g1f3 g8f6
go depth 20
quit
```

For more information about stockfish, see the [stockfish github page](https://github.com/official-stockfish/Stockfish).


## PyChess Example

```python
import chess
import chess.engine

stockfish = chess.engine.SimpleEngine.popen_uci("./stockfish")

board = chess.Board()

while not board.is_game_over():
    result = stockfish.play(board, chess.engine.Limit(time=0.1))
    board.push(result.move)
    print(board, "\n")

stockfish.quit()
```