Ключевые слова: adult, background, battle, board, brain, caucasian, chess, chessboard, competition, competitor, contest, decision, education, enjoy, entertainment, event, focus, game, hobby, holding, indoors, intellectual, intelligence, knight, leisure, lesson, logic, male, man, match, move, person, piece, pieces, play, player, playing, professional, selective, skill, smart, sport, strategic, strategical, strategy, success, table, teacher, tournament, winner,