Ключевые слова: absence, abstract, angles, arrangement, art, black, brainteaser, complexity, composition, contrast, corners, craftsmanship, cube, dark, depth, design, display, dramatic, edges, enigma, escheresque, exhibition, forms, geometric, illusion, impossible, intense, intricate, matte, minimalist, monochrome, mysterious, noncolor, optical, pattern, perspective, polyhedra, precision, prisms, puzzling, pyramid, sculpture, shadow, spatial, subtle, tetrahedron, texture, threedimensional,