Ключевые слова: adult, alone, beautiful, board, business, caucasian, challenge, chess, chessboard, clever, closeup, competition, concentration, dark, decision, emotion, face, female, game, girl, glasses, hard, home, indoors, intelligence, leadership, learning, library, looking, move, one, pensive, person, piece, play, player, problem, selective focus, serious, sitting, smart, strategic, strategy, tactic, thinking, thoughtful, win, woman, young,