Ключевые слова: apartment, board game, brain games, challenge, challenging, chess, chessboard, competition, concentration, elder, elderly, focused, game, geriatrics, grandfather, home, house, indoors, intelligent, leisure, lifestyle, looking at camera, man, memory, move, old, pensioner, pensive, people, person, pieces, player, playing, portrait, recreational, senior, senior citizen, sitting, solution, staring, strategic, strategy, tactics, thinking, tournament,