Ключевые слова: 3d, abstract, art, brain, challenge, complexity, concept, cube, cut, design, education, fun, game, green, group, hand, icon, idea, illustration, image, intelligence, isolated, leisure, life, logic, logical, match, mental, object, pattern, piece, play, problem, puzzle, question, red, shape, skill, solution, solve, space, still, success, symbol, team, teamwork, toy, white, wood,