Ключевые слова: background, battle, black, blue, business, challenge, check, checkerboard, chess, chessman, chesspiece, competition, concept, copy, dark, decision, different, fight, figure, figures, game, hobby, intellectual, king, many, mental, mind, move, nobody, object, pawn, pieces, plan, play, player, set, skill, smart, space, sport, strategy, success, tactics, text, toned, victory, war, white, win, wooden,