Ключевые слова: activity, analog, black, board, challenge, chess, classical, clock, competition, competitive, conflict, countdown, deadline, decision, display, draw, end, face, game, hand, hour, intelligence, isolated, leisure, loss, lost, mechanical, minute, move, object, old, pair, play, pressure, second, speed, sport, strategic, strategy, success, symmetry, time, timer, two, watch, white, winning,