Sure! Here's an example of a simplified Chess game implemented as a single HTML file using JavaScript. This implementation allows you to make moves by clicking on the pieces and their destination squares. For simplicity, it doesn't include features like castling, en passant, or checkmate detection.
You can copy the code below and save it as an HTML file to play the game:
Please note that this is a basic implementation and it is up to you to implement the full logic for valid moves and additional game features.