{
  "name": "井字棋 - 集盒",
  "short_name": "井字棋",
  "description": "人机对战井字棋：电脑采用基于比特棋盘（bitboard）的极大极小搜索（Minimax）并配合 Alpha-Beta 剪枝，困难难度下永不落败；可选简单 / 普通 / 困难与先后手。",
  "lang": "zh-CN",
  "dir": "ltr",
  "start_url": "/tool/tic-tac-toe",
  "scope": "/",
  "display": "standalone",
  "display_override": [
    "standalone",
    "minimal-ui"
  ],
  "orientation": "portrait",
  "background_color": "#007AFF",
  "theme_color": "#007AFF",
  "categories": [
    "utilities",
    "productivity"
  ],
  "icons": [
    {
      "src": "/icons/icon-192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icons/icon-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icons/icon-maskable-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "maskable"
    }
  ]
}