# 5x5x5 Rubik’s Cube – Professor’s Cube

The 5x5x5 Rubik’s Cube also known as the Professor’s Cube is the invention of Udo Krell. It is a more complicated 5 layered version of the Rubiks Cube.

There are three main manufacturers. The **Eastsheen 5x5x5** version moves very smooth without lubrication, in my opinion it’s the best choice. The classic **Rubiks Professor’s Cube** has the worst quality, it’s loose and locks up, the center piece caps are falling out. For the Verdes Cubes fans there is a good option, the **V-Cube 5**. This doesn’t feel like it’s going to fall apart on me, it’s massive just how it should be, it cuts corners relatively well. This version is also a good option. Maybe you will find some Chinese copies cheaper but these probably move bad.

There are not so many mods out there, maybe working with so many pieces is too time-consuming, but we can find siamese versions and sticker mods.

The 5x5x5 Rubiks Cube puzzle has approximately 2,82 x 10^{74} possible permutations. To illustrate how big this number, I have to tell that it is close to the estimated number of atoms in the Universe.

## The solution

To solve this you have to know the solution of the 4x4x4 Cube. The basic idea is the same. This cube maybe is even easier because it has a fixed center piece, but it is more time consuming. Here the “center” will be a 3×3 square and the “edges” will contain 3 edge pieces. While you’re pairing the corresponding edge pieces you might find yourself in a situation when you have to switch two edges like marked on the picture. In this case apply this algorithm, while holding the cube like on the picture:

**L*` 2U L*` – 2U 2F L*` 2F R* 2U – R*` 2U 2L***

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