The 4 centres on each side can now be treated as one, and each pair of two edge pieces can be treated as one edge. Last two centres – Use commutators and puzzle knowledge to solve one of the last two centres, leaving the last centre solved. In Figure 1, an example is shown of how the different layers have to be manipulated to construct the edges in their entireties.

This can be solved using an algorithm that is relatively long and difficult to remember (you may hear speedsolvers complaining of OLL parity because of the added time it takes to correct the parity, slowing down their solve). There is no way of knowing on a 4x4 (or any even layered cube) if you’ve solved the centres correctly in relation to the core mechanism.Try finding one (if not, simply build it by doing at most 2 moves), and then find another to insert next to it. For 4x4, we used Uw and Uw’ moves to build edges, whereas with 5x5 and above we need to do multiple slice moves to pair up the multiple pieces that constitute the edges.

You should be able to apply your knowledge from the first two centres to build two adjacent centres without disturbing your original two. 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. It’s fast and efficient, allowing you to solve multiple parts of edges at a time in its most advanced applications. If you are familiar with the notation of a classic 3x3x3 Rubik's Cube then you must know that this affects only the outer layers of the puzzle. There are 21 defined PLL cases – These are cases that can appear on a 3x3 cube, there are no more combinations of pieces.Everything is exactly the same as the previous 4, just construct each edge and push it into the top layer.

This means that when building your centres on even layered cubes, you must build the centres according to the colour scheme (i. The method involves a few simple steps that are used to “reduce” the puzzle to the equivalent of a 3x3. For more examples or to see this in action please set the scramble length to 1 for a 11x11x11 cube and do some scrambles.The second centre will be opposite the first, so the only difference in solving is that you have to undo certain moves to preserve the first centre. As shown in Figure 1, an edge has been made by slicing across to match up two pieces (to align two pieces, simply insert the matching piece like an F2L pair using R U’ R’ moves). 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. Orient: On official WCA competitions cube puzzles and Megaminx are scrambled with the white face on top and the green face on the front. Combinations: 157 152 858 401 024 063 281 013 959 519 483 771 508 510 790 313 968 742 344 694 684 829 502 629 887 168 573 442 107 637 760 000 000 000 000 000 000 000 000 (1.