Ключевые слова: activity, african, american, analysis, asian, board, boy, caucasian, chess, chessboard, chessman, chesspiece, child, childhood, children, clever, competition, concentrated, concentration, concept, confident, development, entertainment, family, gambit, game, hobby, home, indoors, intellectual, kid, learning, leisure, lifestyle, logically, male, play, player, preschooler, pupil, schoolboy, serious, sitting, skill, strategic, strategy, thinking, thoughtful, tournament, young,