The well-known Rubik's Cube laid the foundation for the whole series of the same puzzles. Their main objective is to collect the mixed parts in a certain way. There are "Rubika Globe" and "Rubik's Triangle". The name of the inventor of a cube was included also in these names in spite of the fact that their other people thought up. In particular, the tetrahedron was almost at the same time made by the Chisinau inventor V. Ordyntsev and U. Meffert of Germany.
It is required to you
- - puzzle tetrahedron.
Instruction
1. Observe of what parts the tetrahedron consists. All its moving fragments represent small correct triangular pyramids too. On each side their nine. At turn the small pyramids get from one side of a big tetrahedron on another. And it gives the chance to collect all design. Some parts seem motionless – in particular those pyramids which are near tops, but is closer to the center.
2. Look in what colors tops are painted. On each final tetrahedron there are sides of three flowers. That shade in which the opposite side of the pyramid has to be painted is absent.
3. Orient tops. Each of the pyramids located on corners adjoins one edge to the next small tetrahedron disposed closer to the center. Develop each fragment which is in a corner so that colors of its sides coincided with flowers of the tetrahedrons located in the neighbourhood. At you one-color rhombuses have to turn out.
4. Develop all rhombuses (that is tops and average fragments) so that on each side there were rhombuses of one color. On each party you will see something like a flower — 3 petals departing from core. Between them there are treugolnichka of other color. Each stage of assembly submits to a certain algorithm. Try to remember in what sequence you turn different groups of elements.
5. Rearrange the treugolnichka located in the middle of edges. In turn translate them from the basis to top. "Petals" at this operation, of course, will be gradually displaced, but rhombuses have to remain whole. The sequence of actions is specified in the drawing.
6. Define what of sides will be the pyramid basis. In principle, it is all the same, it is just necessary to bring together some party by the first. Orient costal treugolnichka so that they were one color with that side which you form now.
7. You need to establish other costal elements. Consistently overturn them, as shown in the drawing. Be not frightened that it is necessary to destroy for some moment what you already collected. The only thing that it is impossible to break — the rhombuses made of average elements and tops.