Ключевые слова: adult, age, background, battle, board, brain, caucasian, chess, chessboard, competition, competitor, contest, decision, education, enjoy, entertainment, event, focus, game, hobby, intelligence, leisure, lesson, logic, male, match, men, middle, people, piece, pieces, play, player, playing, professional, selective, senior, skill, smart, sport, strategical, strategy, success, table, teacher, thinking, thoughtful, tournament, white, winner,