The last four edges are mostly intuitive for bigger cubes, just try and use logic and what you already know about edge pairing and the flipping algorithm to learn some of the most common cases and how to recognise and solve them quickly and efficiently. This is enough to scramble a 2x2x2 Pocket Cube and a Rubik's Cube but for the 4x4x4 and bigger cubes we need to reach the inner layers too. 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. 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.

There aren’t any awkward cases, and if two edges aren’t opposite one another as shown in Figure 6 (this is shown in Figure 7, where the leftmost green edge pairs with the rightmost red edge) then you can just do the flipping algorithm on one of the edges to positon them then perform the above combination of moves to solve it. A simpler way involves performing a PLL algorithm that you do know until you’re left with the obvious confirmation that you have parity – Two adjacent edges are swapped or two opposite edges are swapped, and the rest of the puzzle is solved. Reduction involves solving all the edges (matching up the pieces from the same edge to make one solved “edge”) and the centres, then solving the cube like a 3x3 (all of the edge pieces have been “reduced” to a single edge, and all of the centres have been “reduced” to one solid colour per face). Activating this checkbox the program will insert separators into the algorithm for a better readability.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.

Even though odd layered cubes have many centres, there is always one that is directly in the middle of them all.On official WCA competitions they use not only the classic 3x3x3 Rubik's Cube but other cubes like the 2x2x2 Pocket Cube, the 4x4x4 Rubiks Revenge, the 5x5x5 Professor's Cube up to the 7x7x7 cube. 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). Orient: On official WCA competitions cube puzzles and Megaminx are scrambled with the white face on top and the green face on the front.