Ключевые слова: abstract, analyze, background, battle, black, board, brown, business, caucasian, challenge, chess, chessboard, choice, competition, concept, deduction, defeat, fight, game, glass, intelligence, king, knight, leader, leisure, lens, line, magnifier, magnifing, magnify, magnifying, move, optical, pawn, pieces, planning, play, power, queen, set, shadow, sport, strategy, success, table, victory, win, wood, wooden,