{
  "source": "apps/web/app/globetrotter/capitals-data.ts",
  "frozen_at": "2026-06-30",
  "n_countries": 197,
  "overall_difficulty_counts": {
    "1": 54,
    "2": 79,
    "3": 64
  },
  "with_alt_names": 19,
  "pearson_difficulty_vs_capital_len": 0.1639,
  "by_region": [
    {
      "region": "Africa",
      "n": 54,
      "difficulty_counts": {
        "1": 1,
        "2": 26,
        "3": 27
      },
      "mean_difficulty": 2.481,
      "median_capital_len": 7,
      "hard_tier_share": 0.5
    },
    {
      "region": "Americas",
      "n": 36,
      "difficulty_counts": {
        "1": 10,
        "2": 15,
        "3": 11
      },
      "mean_difficulty": 2.028,
      "median_capital_len": 9,
      "hard_tier_share": 0.3056
    },
    {
      "region": "Asia",
      "n": 49,
      "difficulty_counts": {
        "1": 18,
        "2": 21,
        "3": 10
      },
      "mean_difficulty": 1.837,
      "median_capital_len": 7,
      "hard_tier_share": 0.2041
    },
    {
      "region": "Europe",
      "n": 44,
      "difficulty_counts": {
        "1": 23,
        "2": 16,
        "3": 5
      },
      "mean_difficulty": 1.591,
      "median_capital_len": 6,
      "hard_tier_share": 0.1136
    },
    {
      "region": "Oceania",
      "n": 14,
      "difficulty_counts": {
        "1": 2,
        "2": 1,
        "3": 11
      },
      "mean_difficulty": 2.643,
      "median_capital_len": 8,
      "hard_tier_share": 0.7857
    }
  ],
  "hardest_subregions_n_ge_4": [
    {
      "subregion": "Micronesia",
      "n": 5,
      "mean_difficulty": 3
    },
    {
      "subregion": "Melanesia",
      "n": 4,
      "mean_difficulty": 2.75
    },
    {
      "subregion": "Western Africa",
      "n": 16,
      "mean_difficulty": 2.688
    },
    {
      "subregion": "Central Asia",
      "n": 5,
      "mean_difficulty": 2.6
    },
    {
      "subregion": "Middle Africa",
      "n": 9,
      "mean_difficulty": 2.556
    },
    {
      "subregion": "Eastern Africa",
      "n": 18,
      "mean_difficulty": 2.5
    },
    {
      "subregion": "Caribbean",
      "n": 14,
      "mean_difficulty": 2.429
    },
    {
      "subregion": "Southern Africa",
      "n": 5,
      "mean_difficulty": 2.4
    }
  ],
  "easiest_subregions_n_ge_4": [
    {
      "subregion": "Northern Europe",
      "n": 10,
      "mean_difficulty": 1.4
    },
    {
      "subregion": "Western Europe",
      "n": 9,
      "mean_difficulty": 1.444
    },
    {
      "subregion": "Eastern Europe",
      "n": 10,
      "mean_difficulty": 1.5
    },
    {
      "subregion": "Eastern Asia",
      "n": 6,
      "mean_difficulty": 1.5
    },
    {
      "subregion": "South-Eastern Asia",
      "n": 11,
      "mean_difficulty": 1.727
    }
  ],
  "trap_capitals": {
    "definition": "difficultyBase <= 2 but capital name length >= 9 characters",
    "n": 36,
    "examples": [
      {
        "country": "United States",
        "capital": "Washington, D.C.",
        "difficulty": 1,
        "capital_len": 16
      },
      {
        "country": "Guatemala",
        "capital": "Guatemala City",
        "difficulty": 2,
        "capital_len": 14
      },
      {
        "country": "Haiti",
        "capital": "Port-au-Prince",
        "difficulty": 2,
        "capital_len": 14
      },
      {
        "country": "Dominican Republic",
        "capital": "Santo Domingo",
        "difficulty": 2,
        "capital_len": 13
      },
      {
        "country": "Trinidad and Tobago",
        "capital": "Port of Spain",
        "difficulty": 2,
        "capital_len": 13
      },
      {
        "country": "Argentina",
        "capital": "Buenos Aires",
        "difficulty": 1,
        "capital_len": 12
      },
      {
        "country": "Malaysia",
        "capital": "Kuala Lumpur",
        "difficulty": 1,
        "capital_len": 12
      },
      {
        "country": "El Salvador",
        "capital": "San Salvador",
        "difficulty": 2,
        "capital_len": 12
      },
      {
        "country": "Vatican City",
        "capital": "Vatican City",
        "difficulty": 2,
        "capital_len": 12
      },
      {
        "country": "Papua New Guinea",
        "capital": "Port Moresby",
        "difficulty": 2,
        "capital_len": 12
      },
      {
        "country": "Mexico",
        "capital": "Mexico City",
        "difficulty": 1,
        "capital_len": 11
      },
      {
        "country": "Ethiopia",
        "capital": "Addis Ababa",
        "difficulty": 2,
        "capital_len": 11
      }
    ]
  },
  "short_hard_tier3": [
    {
      "country": "Cabo Verde",
      "capital": "Praia",
      "capital_len": 5
    },
    {
      "country": "South Sudan",
      "capital": "Juba",
      "capital_len": 4
    },
    {
      "country": "Togo",
      "capital": "Lome",
      "capital_len": 4
    },
    {
      "country": "Bolivia",
      "capital": "Sucre",
      "capital_len": 5
    },
    {
      "country": "Liechtenstein",
      "capital": "Vaduz",
      "capital_len": 5
    },
    {
      "country": "Fiji",
      "capital": "Suva",
      "capital_len": 4
    },
    {
      "country": "Nauru",
      "capital": "Yaren",
      "capital_len": 5
    },
    {
      "country": "Samoa",
      "capital": "Apia",
      "capital_len": 4
    },
    {
      "country": "Timor-Leste",
      "capital": "Dili",
      "capital_len": 4
    }
  ],
  "longest_by_tier": {
    "1": [
      {
        "country": "United States",
        "capital": "Washington, D.C.",
        "capital_len": 16
      },
      {
        "country": "Argentina",
        "capital": "Buenos Aires",
        "capital_len": 12
      },
      {
        "country": "Malaysia",
        "capital": "Kuala Lumpur",
        "capital_len": 12
      },
      {
        "country": "Mexico",
        "capital": "Mexico City",
        "capital_len": 11
      },
      {
        "country": "Denmark",
        "capital": "Copenhagen",
        "capital_len": 10
      }
    ],
    "2": [
      {
        "country": "Guatemala",
        "capital": "Guatemala City",
        "capital_len": 14
      },
      {
        "country": "Haiti",
        "capital": "Port-au-Prince",
        "capital_len": 14
      },
      {
        "country": "Dominican Republic",
        "capital": "Santo Domingo",
        "capital_len": 13
      },
      {
        "country": "Trinidad and Tobago",
        "capital": "Port of Spain",
        "capital_len": 13
      },
      {
        "country": "El Salvador",
        "capital": "San Salvador",
        "capital_len": 12
      }
    ],
    "3": [
      {
        "country": "Sri Lanka",
        "capital": "Sri Jayawardenepura Kotte",
        "capital_len": 25
      },
      {
        "country": "Brunei",
        "capital": "Bandar Seri Begawan",
        "capital_len": 19
      },
      {
        "country": "Andorra",
        "capital": "Andorra la Vella",
        "capital_len": 16
      },
      {
        "country": "C\u00f4te d'Ivoire",
        "capital": "Yamoussoukro",
        "capital_len": 12
      },
      {
        "country": "Madagascar",
        "capital": "Antananarivo",
        "capital_len": 12
      }
    ]
  },
  "headline": "Africa mean difficulty 2.481 vs Europe 1.591; difficulty vs spelling length r \u2248 0.16 (weak). 36 trap capitals labeled easy/medium with long names."
}