Ключевые слова: activity, against, battle, black, blur, blurred, board, challenge, check, checkmate, chess, chessboard, competition, concept, decision, defeat, defense, education, enemy, fight, game, group, horse, idea, intelligence, king, lead, leisure, move, object, pawn, piece, pieces, plan, planning, play, power, queen, selective focus, sport, squares, strategic, strategy, success, tactic, team, think, victory, win, wooden,