| 摘要 |
<p>FIELD: games. ^ SUBSTANCE: invention relates to volume brainteasers and may be used to develop logical thinking and spatial imagination. Brainteaser is arranged in the form of cube and comprises fastening devices with game elements fixed on them and filling elements. Game elements are arranged in the form of pyramid and may alternately rotate around brainteaser centre and relative to each other. Brainteaser centre is arranged in the form of octahedron, faces of which are bearing surfaces for fixation of rotary pyramids, every of which includes group of game elements, including one tetrahedron and three equal irregular pyramids. ^ EFFECT: proposed brainteaser provides for rotation in maximum quantity of planes, which are not parallel and not perpendicular to cube faces. ^ 3 cl, 13 dwg</p> |
