Ключевые слова: background, battle, board, business, challenge, check, chess, chessboard, chessman, chesspiece, competition, concept, copy, decision, different, fight, figure, figures, game, hobby, intellectual, isolated, many, mental, mind, move, nobody, object, piece, pieces, plan, play, set, skill, smart, space, sport, strategy, success, tactics, text, victory, war, white, win, wooden,