{
    "white": { "name": "Paulsen, Louis" },
    "black": { "name": "Morphy, Paul" },
    "event": "1st American Chess Congress", 
    "round": 4,
    "subRound": 6,
    "date": "1857-11-03",
    "site": "New York, NY USA", 
    "result": "0-1",
    "mainVariation": [
        "e4",
        "e5",
        "Nf3",
        "Nc6",
        "Nc3",
        "Nf6",
        "Bb5",
        "Bc5",
        "O-O",
        "O-O",
        "Nxe5",
        "Re8",
        "Nxc6",
        "dxc6",
        "Bc4",
        "b5",
        "Be2",
        "Nxe4",
        "Nxe4",
        "Rxe4",
        "Bf3",
        "Re6",
        "c3",
        "Qd3",
        "b4",
        "Bb6",
        "a4",
        "bxa4",
        "Qxa4",
        "Bd7",
        "Ra2",
        "Rae8",
        {
            "notation": "Qa6",
            "comment": "Morphy took twelve minutes over his next move, probably to assure himself that the combination was sound and that he had a forced win in every variation.",
            "isLongComment": true
        },
        { "notation": "Qxf3", "nags": [ 3 ] },
        "gxf3",
        "Rg6+",
        "Kh1",
        "Bh3",
        {
            "notation": "Rd1",
            "variations": [
                {
                    "comment": "Not",
                    "nodes": [
                        "Rg1",
                        "Rxg1+",
                        "Kxg1",
                        { "notation": "Re1+", "nags": [ 19 ] }
                    ]
                }
            ]
        },
        "Bg2+",
        "Kg1",
        "Bxf3+",
        "Kf1",
        {
            "notation": "Bg2+",
            "variations": [
                {
                    "isLongVariation": true,
                    "nodes": [
                        { "notation": "Rg2", "comment": "would have won more quickly. For instance:", "nags": [ 1 ] },
                        "Qd3",
                        "Rxf2+",
                        "Kg1",
                        "Rg2+",
                        "Kh1",
                        "Rg1#"
                    ]
                }
            ]
        },
        "Kg1",
        "Bh3+",
        "Kh1",
        "Bxf2",
        { "notation": "Qf1", "comment": "Absolutely forced." },
        "Bxf1",
        "Rxf1",
        "Re2",
        "Ra1",
        "Rh6",
        "d4",
        "Be3"
    ]
}