kokopu/test/resources/jsons/illegal-move-2/game.json

A JavaScript/TypeScript library implementing the chess game rules and providing tools to read/write the standard chess file formats.

{
    "event": "Illegal move",
    "mainVariation": [
        "e4",
        "e5",
        "d4",
        {
            "notation": "e6",
            "comment": "I'm a comment..."
        }
    ]
}