V-Cube 7
The V- Cube 7 is the 7 × 7 × 7 version of Rubik's Cube ( Rubik 's Cube ). It was invented by Panagiotis Verdes and is also used by his company, Verdes Innovations SA. produced. As the 5 × 5 × 5 also, the 7 × 7 × 7 has fixed and moving parts means.
Mechanism
The puzzle consists of 218 unique cubies. The six central middle parts ( of a total of 150) are connected directly to the core of the puzzle, which is why they can not move. The other middle portions 144 are freely movable, in contrast to the original 3 X 3 X 3, wherein there are only six middle parts, which are stationary because of it. The 6 × 6 × 6 uses the same mechanism, except that the seventh row not connected ( the central part ) with cubies, so to speak, is "hidden".
There are edge portions 60, each showing two color pages, and eight corners, each showing three sides. However, there is no edge parts, the red and orange show, for example, because red is opposite orange.
Currently the V- cube 7 is produced with the white and black parts. The Colorskin is: red opposite orange, blue opposite green and yellow against black ( is the black version yellow over white). On the black middle part the logo of the company is in order: A white (or black ) V.
In contrast to the 6 × 6 × 6, the V -cube 7 has a curved surface. The reason is that the V -cube 7 would otherwise be impossible to build because of the large edge piece would constantly fall out - each round a dice, the less comes out from the edge part.
Positions
The cube has approximately 1.95 × 10160 different positions ( exactly 19 500 551 183 731 307 835 329 126 754 019 748 794 904 992 692 043 434 567 152 132 912 323 232 706 135 469 180 065 278 712 755 853 360 682 328 551 719 137 311 299 993 600 000 000 000 000 000 000 000 000 000 000 000). By printing a Vs on the middle stone one side, as usual with some dice, that number quadrupled to 7.80 × 10160th
Solution
For the 7 × 7 × 7 cube the solution of 5 × 5 × 5 cube can be used as the headways to swap individual parts are the same. Due to the higher number of items only these headways must be performed more frequently.
One of the known strategies, the so-called reduction method, which is often used for all the blocks having larger dimensions than the 3 × 3 × 3, is that first of all the central and edge portions are arranged in color. Thereafter, the dice are solved only by making use of the outer pivot axes is equivalent to the 3 × 3 × 3 cubes.
Speedcubers are able to solve the V- Cube 7 and similar puzzles in a very short time. The official world record for the V- Cube 7 keeps Barát Bence from Hungary, stopped at a time of 2:40,11 in the Austrian Big Cube Open 2013 Competition.
Swell
- V -cube Patent On: freepatentsonline.com