{
  "Queen's Gambit": {
    "color": "white",
    "uciMoves": ["d2d4", "d7d5", "c2c4"],
    "sanMoves": ["d4", "d5", "c4"],
    "description": "Sacrifice a flank pawn to claim complete control over the center squares."
  },
  "Italian Game": {
    "color": "white",
    "uciMoves": ["e2e4", "e7e5", "g1f3", "b8c6", "f1c4"],
    "sanMoves": ["e4", "e5", "Nf3", "Nc6", "Bc4"],
    "description": "An ancient, highly educational opening focusing on rapid kingside development and attacking f7."
  },
  "Ruy Lopez": {
    "color": "white",
    "uciMoves": ["e2e4", "e7e5", "g1f3", "b8c6", "f1b5"],
    "sanMoves": ["e4", "e5", "Nf3", "Nc6", "Bb5"],
    "description": "The Spanish Game puts immediate pressure on Black's central defender on c6."
  },
  "London System": {
    "color": "white",
    "uciMoves": ["d2d4", "d7d5", "g1f3", "g8f6", "c1f4"],
    "sanMoves": ["d4", "d5", "Nf3", "Nf6", "Bf4"],
    "description": "A solid, universal setup where White develops the dark-squared bishop early to f4."
  },
  "English Opening": {
    "color": "white",
    "uciMoves": ["c2c4", "e7e5", "b1c3", "g8f6"],
    "sanMoves": ["c4", "e5", "Nc3", "Nf6"],
    "description": "A flexible flank opening aiming to control the d5 square from the wing."
  },
  "Réti Opening": {
    "color": "white",
    "uciMoves": ["g1f3", "d7d5", "c2c4"],
    "sanMoves": ["Nf3", "d5", "c4"],
    "description": "A hypermodern opening attacking Black's d5 center from the flank with knights and pawns."
  },
  "Sicilian Defense: Najdorf": {
    "color": "black",
    "uciMoves": ["e2e4", "c7c5", "g1f3", "d7d6", "d2d4", "c5d4", "f3d4", "g8f6", "b1c3", "a7a6"],
    "sanMoves": ["e4", "c5", "Nf3", "d6", "d4", "cxd4", "Nxd4", "Nf6", "Nc3", "a6"],
    "description": "A sharp, legendary counter-attacking weapon favored by Kasparov and Fischer."
  },
  "French Defense": {
    "color": "black",
    "uciMoves": ["e2e4", "e7e6", "d2d4", "d7d5"],
    "sanMoves": ["e4", "e6", "d4", "d5"],
    "description": "A solid counter-attacking defense fighting for the center with e6 and d5."
  },
  "Caro-Kann Defense": {
    "color": "black",
    "uciMoves": ["e2e4", "c7c6", "d2d4", "d7d5"],
    "sanMoves": ["e4", "c6", "d4", "d5"],
    "description": "One of Black's most solid responses to e4, supporting d5 with pawn c6."
  },
  "King's Indian Defense": {
    "color": "black",
    "uciMoves": ["d2d4", "g8f6", "c2c4", "g7g6", "b1c3", "f8g7", "e2e4", "d7d6"],
    "sanMoves": ["d4", "Nf6", "c4", "g6", "Nc3", "Bg7", "e4", "d6"],
    "description": "A dynamic hypermodern defense allowing White a big center before launching a kingside counterattack."
  },
  "King's Indian (vs Flank/Réti)": {
    "color": "black",
    "uciMoves": ["g1f3", "g8f6", "c2c4", "g7g6", "g2g3", "f8g7", "f1g2", "d7d6"],
    "sanMoves": ["Nf3", "Nf6", "c4", "g6", "g3", "Bg7", "Bg2", "d6"],
    "description": "A universal hypermodern defense against White's Réti or English flank setups."
  },
  "Scandinavian Defense": {
    "color": "black",
    "uciMoves": ["e2e4", "d7d5", "e4d5", "d8d5"],
    "sanMoves": ["e4", "d5", "exd5", "Qxd5"],
    "description": "Immediately challenges White's e4 pawn on move one, leading to open positions."
  }
}
