Ключевые слова: background, battle, black, board, business, challenge, check, checkmate, chess, chessboard, choice, competition, concept, decision, design, empty, fight, figure, game, hand, idea, intelligence, king, knight, leader, leadership, leisure, man, move, old, online, pattern, pawn, piece, plan, play, power, sport, square, strategic, strategy, success, surface, table, think, thinking, victory, white, win, wooden,