Ключевые слова: 80s, background, brain, classic, color, colorful, competition, cube, dexterity, dice, editorial, entertainment, equation, formula, game, illustrative, illustrative editorial, intelligence, invented, irresolute, isolated, leisure, logic, mathematics, object, patience, pink red, plastic, play, problem, puzzle, random, red background, resolved, rubik, science, single, solve, solving, speed, square, stress, symbol, toy, white,