Ключевые слова: ancient, background, black, business, challenge, circle, competition, cross, diagonal, doodle, draw, drawing, education, entertainment, fun, game, hand, image, leisure, line, logic, lose, mental, naughts, o, pencil, photo, plastic, play, players, scribble, shape, skill, square, strategy, tac, think, tic, tictactoe, toe, toy, victory, win, winner, x, yellow,