kokopu/test/resources/jsons/invalid-nag-2/game.json

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

{
    "event": "Invalid NAG",
    "mainVariation": [
        "d4",
        "d5",
        { "notation": "c4", "nags": [ -42 ] }
    ]
}