Ключевые слова: adult, aged, battle, board, challenge, chess, chessboard, competition, competitive, concentrated, concentration, elderly, enjoyment, experience, family, father, figure, friend, friendship, game, generation, gentleman, grandfather, happy, hobby, human, indoor, intelligence, leisure, male, man, mature, millennial, moving, old, pastime, pensioner, person, play, playing, relaxing, retired, retirement, senior, share, son, strategy, thinking, young,