reactchessts/src/data/datasets/openings.json

React TypeScript chess development toolkit

{
  "openings": [
    {
      "eco": "B20",
      "name": "Sicilian Defense",
      "moves": ["e4", "c5"],
      "fen": "rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - 0 2",
      "explanation": [
        "Black immediately fights for the center with a flank pawn",
        "Creates imbalanced positions with many tactical opportunities"
      ],
      "variations": [
        {
          "name": "Closed Sicilian",
          "moves": ["e4", "c5", "Nc3"],
          "explanation": "White aims for a slower, more positional game"
        },
        {
          "name": "Open Sicilian",
          "moves": ["e4", "c5", "Nf3", "d6", "d4"],
          "explanation": "White immediately opens the center for tactical play"
        }
      ]
    },
    {
      "eco": "C60",
      "name": "Ruy Lopez",
      "moves": ["e4", "e5", "Nf3", "Nc6", "Bb5"],
      "fen": "r1bqkbnr/pppp1ppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - 3 3",
      "explanation": [
        "One of the oldest and most popular openings",
        "White pins the knight and prepares to control the center",
        "Creates long-term pressure on Black's position"
      ],
      "variations": [
        {
          "name": "Berlin Defense",
          "moves": ["e4", "e5", "Nf3", "Nc6", "Bb5", "Nf6"],
          "explanation": "A solid defense favored by many top players"
        },
        {
          "name": "Morphy Defense",
          "moves": ["e4", "e5", "Nf3", "Nc6", "Bb5", "a6"],
          "explanation": "The most popular response, keeping the bishop pair"
        }
      ]
    }
  ]
}