Ключевые слова: abstract, america, banner, battle, blue, castle, challenge, check, checkmate, chess, colorful, competition, concept, crown, defeat, fight, flag, game, idea, king, knight, leader, match, national, patriot, pawn, piece, plan, play, power, queen, red, royal, sign, sport, square, star, strategic, strategy, success, successful, tactic, team, toys, us, usa, victory, white, win, winner,