Ключевые слова: background, battle, black, board, business, businessman, challenge, chess, chessboard, competition, concept, corporate, education, enemy, executive, fight, figure, game, hand, human, idea, intelligence, king, knight, leader, leadership, leisure, man, management, manager, move, opponent, pawn, people, piece, planning, play, player, power, queen, resources, sport, strategic, strategy, success, successful, think, thinking, victory, win,