Ключевые слова: activity, adult, background, black, block, brown, chain, challenge, closeup, competition, concept, connected, connection, continuity, domino, elderly, enjoyment, entertainment, fun, gamble, gambling, game, group, hand, hobby, leisure, lifestyle, line, link, number, object, old, pastime, piece, play, playing, recreation, row, senior, sequence, set, stack, strategy, symbol, table, toy, white, wood, years,