Figure 5 shows the orange sticker of an orange-blue piece in the top left, and in the top right, the matching orange-blue edge and centre are joined together, but incorrectly (the centre edge piece is flipped). Activating this checkbox the program will insert separators into the algorithm for a better readability. For each step a walkthrough will be provided for the 4x4 and 5x5 cubes, as most even-layered and odd layered puzzles share the same properties (4x4 and 6x6, 5x5 and 7x7 etc.

In the same way to the 4x4, you can solve two adjacent edges fairly intuitively whilst preserving your white and yellow centres that are on the left and right. Even though odd layered cubes have many centres, there is always one that is directly in the middle of them all. Try finding one (if not, simply build it by doing at most 2 moves), and then find another to insert next to it.The first centre can be made by connecting two pieces together (in fact, most of the time there will already be one of these 1x2 “bars” solved on your cube due to the limited amount of possible centre combinations).

However, because there are no empty spaces in the top or bottom layers, we can’t connect them using the above method, we have to get creative. Remember – Because you’re solving an even layered cube, this means that there is no single centre piece. If you’re solving anything larger than a 4x4, however, then the 5x5 edges section may be better suited for this part of the solve. Since the release of the original Rubik’s Cube, people have been striving to create new and harder twisty puzzles.If, in Figure 5, the two orange-blue edges on the right were correctly oriented (they matched), then you’d be able to place the last edge piece by performing a Dw’ (bringing the “location” of the final piece underneath the actual edge piece), performing the flipping algorithm and undoing the slice with a Dw. It has been enhanced with a couple pictures, and still remains the simplest solution I can find that works for cubes from 2x2x2 through 7x7x7 (and further). If you know all of the PLL algorithms then noticing PLL parity will be easy for you – if the permutation of the pieces does not match a PLL algorithm that you already know, then you know you have parity.