Ключевые слова: blackboard, boy, checkmate, chess, chessboard, chessman, chesspiece, child, childhood, children, clever, closeup, competition, competitive, cute, decisions, educator, face, game, home, homework, ideas, kid, kids, leaning, learning, lessons, male, men, pawn, playful, portrait, preschooler, professor, pupil, readiness, rivalry, school, schoolboy, serious, strategy, students, study, teachers, teaching, think, thinking, victory, winning,