Ключевые слова: activity, background, battle, blackboard, board, business, challenge, checkmate, chellange, chess, chessboard, company, competition, concept, decision, defeat, defense, duel, fight, finance, game, idea, intelligence, king, knight, leader, leadership, leisure, money, motivation, move, opponent, pawn, piece, plan, play, player, power, queen, royal, strategic, strategy, success, team, teamwork, think, victory, win, wooden,