Ключевые слова: alone, army, background, battle, black, board, boss, business, challenge, chess, chessboard, combat, competition, concept, dark, design, different, education, fight, game, innovation, intelligence, lead, leader, leadership, leisure, manager, match, move, nobody, object, pawn, pieces, plan, play, power, progress, risk, skill, sport, strategy, strength, symbol, team, teamwork, thinking, unique, war, white, wooden,