Ключевые слова: 3, azure, background, blue, brain, classic, color, colorful, colors, conundrum, cube, dice, editorial, enigmatic, entertainment, erno, game, hungarian, illustrative, illustrativeeditorial, ilustrative, intellectualfacilities, intelligence, isolated, leisure, logic, mathematics, mentality, mind, mindbreaker, multicolor, mysterious, play, problem, puzzle, puzzling, random, red, rubik, single, solve, solved, solving, square, symbol, think, three, toy, white,