Ключевые слова: background, battle, black, board, business, businessman, challenge, checkmate, chess, chessboard, company, competition, concept, corporate, defeat, executive, fight, game, idea, intelligence, investment, king, knight, leader, leadership, management, manager, move, pawn, piece, plan, planning, play, power, professional, sport, strategic, strategy, succeed, success, team, teamwork, think, victory, vision, winner,