Hi @codingdefined, thanks again for the review! Happy to know this post is a bit better than the previous ones.

Good point on the `.pgn` files. I am not convinced that they should be written in the `.gitignore` file though because this data is required by the tests in order to pass OK as shown in https://travis-ci.org/programarivm/pgn-chess/jobs/420206833.

However, the `.pgn` files, which are all included in the `tests` folder, are ignored in the `.gitattributes` file:

```
/examples/      export-ignore
/resources/     export-ignore
/tests/         export-ignore
.editorconfig   export-ignore
.gitattributes  export-ignore
.gitignore      export-ignore
.travis.yml     export-ignore
```

This way the `tests` folder is not installed locally when doing

```
composer require programarivm/pgn-chess
```

Let me show you something regarding the frontend. I wrote [this prototype](https://github.com/programarivm/react-pgn-chess) with [React](https://reactjs.org/) and [ReactPHP](https://reactphp.org/) -- the frontend prototype is still sketchy, needs some improvement.

Anyway, here is how the React frontend uses the ReactPHP chess server:

```
import React from 'react';
import ReactDOM from 'react-dom';
import Board from './components/Board.js';
import './index.css';

var BoardElement = React.createElement(Board, {server: "localhost:3001"});

ReactDOM.render(
  BoardElement,
  document.getElementById('chess-board')
);
```

The server looks like this:

```
namespace ReactPgnChess;
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use ReactPgnChess\PgnChessGame;
require __DIR__  . '/../vendor/autoload.php';
$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new PgnChessGame()
        )
    ),
    3001
);
$server->run();
```

Thank you for your review, @codingdefined!

So far this week you've reviewed 3 contributions. Keep up the good work!