Ключевые слова: abstract, achievement, activity, art, background, border, brain, brainteaser, challenge, challenging, children, choice, choose, color, complex, concept, conundrum, creative, education, enter, entrance, find, game, geometric, graphic, hobby, idea, image, intricacy, isolated, kids, labyrinth, line, logic, maze, medium, play, puzzle, quadrate, quest, rebus, search, square, training, unique, useful, wall, way,