## Friday, September 4, 2009

### Cubing

Took me long enough to solve the 5x5x5, but it's not as hard as it seems. For those interested in solving Rubik's cubes it is a good fact to know the difficulty of the cubes. The actual order of difficulty is different than what most people would expect. Out of the following cubes their difficulty from hardest to easiest goes as follows.

1. 4x4x4
2. 5x5x5
3. 2x2x2
4. 3x3x3

No one seems to believe me, but believe me I have done them all.

The reason that the 4x4x4 and 2x2x2 are hard is because in order to solve any cube with even dimensions one must remember the order of the colors on the cube relative to the other colors, or else it is simply not possible to solve. The corner pieces have preset order for the color relative to each other, and that is the pattern. On any Rubik's cube the White is opposite the Yellow, the Orange is opposite the Red, and the Blue is opposite the Green. This pattern is the same on cubes with odd dimensions, but while solving the cube the colors will fall into their respective positions without paying attention, and this goes for any odd size be it 7x7x7, 9x9x9, etc.

The parity errors on any cube bigger than a 3x3x3 are what make them difficult, but the concept has to much to it for me to explain here so I will just let ya trust me on that one.

So all in all if you want to learn how to solve any cube it is essential that you understand, and know how to solve a 3x3x3, even before you are able to solve a 2x2x2.