difficulty.summary.json

{
  "tiers_by_split": {
    "train": {
      "easy": 17568,
      "hard": 2789,
      "medium": 7132
    },
    "dev": {
      "medium": 56,
      "hard": 34,
      "easy": 60
    },
    "eval": {
      "hard": 55,
      "easy": 89,
      "medium": 106
    },
    "stress": {
      "medium": 56,
      "easy": 58,
      "hard": 36
    }
  },
  "first_step_families": [
    [
      "alkylation / SNAr",
      8130
    ],
    [
      "one-reactant FGI",
      6764
    ],
    [
      "other",
      4153
    ],
    [
      "amide/ester coupling",
      3945
    ],
    [
      "reductive amination",
      1574
    ],
    [
      "Suzuki-type coupling",
      1473
    ],
    [
      "sulfonylation",
      950
    ],
    [
      "Boc deprotection",
      625
    ],
    [
      "urea / carbamate",
      244
    ],
    [
      "Boc protection",
      219
    ]
  ],
  "points_rate": {
    "three_steps": 0.517,
    "four_plus_steps": 0.195,
    "no_close_train_target": 0.01,
    "uncommon_first_step": 0.243,
    "rare_leaf": 0.212
  }
}