Ключевые слова: background, battle, battlefield, bishop, black, blur, board, business, challenge, check, chess, chessboard, chessman, closeup, competition, concept, decision, defeat, education, fight, figure, focus, game, group, hobby, horizontal, idea, intelligence, king, knight, leader, leadership, leisure, match, mate, move, pawn, piece, play, power, queen, sport, strategic, strategy, success, tactics, tournament, victory, white, wooden,