Ключевые слова: achievement, background, battle, black, board, business, challenge, checkmate, chess, chessboard, competition, concept, design, education, enemy, executive, fight, figure, game, idea, intelligence, king, knight, leader, leadership, leisure, management, manager, move, piece, planning, play, politic, power, professional, queen, sport, strategic, strategy, success, successful, team, teamwork, thinking, victory, win,