{ "status": "packed", "scanned": 5052756, "train_n": 4041400, "eval_full_n": 1011356, "val_n": 8192, "overlap_dropped": 0, "val_method": "piece_stratified_hash_holdout_frozen", "piece_min": 16, "piece_max": 26, "val_piece_hist": { "16": 744, "17": 745, "18": 744, "19": 745, "20": 744, "21": 745, "22": 745, "23": 745, "24": 745, "25": 745, "26": 745 }, "note": "Frozen val. Later shards: train-hash only, one-hot best line, value_valid=1.", "hf_model": "avewright/middlegame-model", "hf_data": "avewright/lichess-middlegame-bestline" }