Ключевые слова: background, battle, black and white, board, board game, business, challenge, checkerboard, chess, chess board, chess game, chessboard, choice, closeup, competition, concept, confrontation, dark, fight, figure, game, gray, horizontal, intellectual sports, intelligence, leisure, move, no people, object, pawn, piece, planning, play, player, playing, rivalry, set, shape, sport, square, strategy, tactic, team, think, tournament, white, wood,