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        "c7c5"
      ],
      "opening_name": "e2e4 c7c5",
      "result": "1/2-1/2",
      "score": 0.5,
      "plies": 107,
      "termination": "THREEFOLD_REPETITION",
      "final_fen": "4R3/P2p4/2bP4/2P3n1/4k3/2K3p1/P7/8 b - - 11 54",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "black",
      "opening": [
        "e2e4",
        "c7c5"
      ],
      "opening_name": "e2e4 c7c5",
      "result": "1-0",
      "score": 0.0,
      "plies": 125,
      "termination": "CHECKMATE",
      "final_fen": "8/8/p7/k1Q5/1p5p/7K/8/3B4 b - - 1 63",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "white",
      "opening": [
        "d2d4",
        "g8f6"
      ],
      "opening_name": "d2d4 g8f6",
      "result": "0-1",
      "score": 0.0,
      "plies": 52,
      "termination": "CHECKMATE",
      "final_fen": "6k1/p4p1p/2n1pP1R/2QbP3/8/2P1B3/Pr3PP1/1qK5 w - - 6 27",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "black",
      "opening": [
        "d2d4",
        "g8f6"
      ],
      "opening_name": "d2d4 g8f6",
      "result": "*",
      "score": 0.5,
      "plies": 160,
      "termination": "PLY_CAP",
      "final_fen": "8/5pk1/8/5K1r/5P2/R4N2/8/8 w - - 17 81",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "white",
      "opening": [
        "e2e4",
        "e7e6"
      ],
      "opening_name": "e2e4 e7e6",
      "result": "*",
      "score": 0.5,
      "plies": 160,
      "termination": "PLY_CAP",
      "final_fen": "8/6K1/8/8/3q4/5bkp/8/8 w - - 4 81",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "black",
      "opening": [
        "e2e4",
        "e7e6"
      ],
      "opening_name": "e2e4 e7e6",
      "result": "1-0",
      "score": 0.0,
      "plies": 85,
      "termination": "CHECKMATE",
      "final_fen": "6k1/1p5Q/p1p2RBp/P2p2pP/6K1/2P3P1/8/8 b - - 2 43",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "white",
      "opening": [
        "c2c4",
        "e7e5"
      ],
      "opening_name": "c2c4 e7e5",
      "result": "1/2-1/2",
      "score": 0.5,
      "plies": 116,
      "termination": "THREEFOLD_REPETITION",
      "final_fen": "2k5/6K1/3Q3p/8/P7/2p5/P2p3P/8 w - - 16 59",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "black",
      "opening": [
        "c2c4",
        "e7e5"
      ],
      "opening_name": "c2c4 e7e5",
      "result": "1-0",
      "score": 0.0,
      "plies": 109,
      "termination": "CHECKMATE",
      "final_fen": "1R6/5k2/4Pp2/3K4/1B6/8/2p5/q5R1 b - - 0 55",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "white",
      "opening": [
        "g1f3",
        "d7d5"
      ],
      "opening_name": "g1f3 d7d5",
      "result": "1-0",
      "score": 1.0,
      "plies": 99,
      "termination": "CHECKMATE",
      "final_fen": "8/1Q6/2Rk3p/4p3/4K3/6P1/5P2/8 b - - 4 50",
      "repeat_idx": 0
    },
    {
      "sf_elo": 2050,
      "model_color": "black",
      "opening": [
        "g1f3",
        "d7d5"
      ],
      "opening_name": "g1f3 d7d5",
      "result": "1-0",
      "score": 0.0,
      "plies": 101,
      "termination": "CHECKMATE",
      "final_fen": "7b/3Q1R2/1p2k3/p7/4pPP1/4P3/P6P/7K b - - 3 51",
      "repeat_idx": 0
    }
  ],
  "estimate": {
    "estimated_elo": 1950,
    "lower_bound": 1900,
    "upper_bound": 2050,
    "note": "bracketed by 1900 (score=0.594) and 2050 (score=0.312); non-monotonic results may make this estimate noisy"
  }
}