FIELD: production of puzzle toys for development of operative thinking, to provide for the possibility of individuals to make in mind combination operations with random elements.;SUBSTANCE: puzzle has segments produced by bisection with several planes of spatial, hollow or internally continuous geometrical figure. Side surfaces of segments are provided with magnets for engagement of segments with one another, said magnets being located on adjacent segments in opposite relation with respect to one another. Signs are applied to inner surfaces of segments, said signs making segments to differ from one another. Magnets are held in cavities provided on side surfaces of segments, wherein they may freely rotate.;EFFECT: simplified construction and increased efficiency in development of operative memory and attention.;4 cl, 3 dwg
展开▼
