![]() Now, put the pieces back in the cube, but this time in the correct position. Once you have taken out an edge, it’s easy to take out the rest of the pieces you need to change. Put a thumb on each edge and make pressure in opposite directions. To take out the pieces of the cube, turn 45 degrees one face (see photo). Therefore, it is advisable to solve most of the cube, so you don’t have to remove and replace so many pieces. In order to fix the cube, you need to take out the pieces that are not properly in place and put them back so that the cube is fully solved. If the piece is now put back in the cube in a different position or orientation, the cube will now be impossible to solve. Most of the times, the Rubik’s Cube becomes unsolvable because someone, intentionally or unintentionally, takes one or more pieces out of the cube. Why there are Rubik’s Cubes that can’t be solved If you only turn the outer layers, the cube acts like a 3x3 with corners, edges, and centers.If you’re looking at Rubik’s Cube solutions and your case does not correspond to any of those represented, then your cube in unsolvable. When you are done, all edge pieces should be joined with their corresponding pieces. In this case, use the slice-flip-slice technique (5:35). Note: for the last few edges, there may be no more unsolved pieces in the top or bottom. Note: if the top has all solved edges, then try turning the cube upside down. ![]() Parity Algorithm: Rw U2 x Rw U2 Rw U2 3Rw' U2 Lw U2 Rw' U2 Rw U2 Rw' U2 Rw' ![]() If 1 edge is unsolved at the end, hold it on the front/top and do the parity algorithm (6:26).Restore all the centers by doing slice moves.Move the solved edge into the top layer, replace it with an unsolved edge using U moves, and move this new edge back down.Try to join them together using slice moves (flip an edge if necessary, using R U R' F R' F' R to flip the front right edge).Find 3 matching edge pieces and put them in the middle layers (not top/bottom).When you are done, all of the centers should be solved. On the last 2 centers, use 3:03 in the video to help if you run into a hard case. Solve the next center above it until all the centers are solved.Make a center the same way as before (middle bar + 2 outer bars).Hold the first 2 centers on the left/right sides.Solve the rest of the centers without breaking anything you've already made. When you are done, 2 opposite centers should be solved. Move this bar to the top, do U2, and restore the bottom center.Make another bar and hold it vertically on the same side as the partial center on top.Make another bar and move it up to the top, do U2, and restore the bottom center.You must make this without breaking the first center. When you are done, one center should be solved. Make another bar and join it to the center.Make a bar of 3 pieces of the same color, and join the bars together.You should be able to start with any color center, but choose white if you want to avoid confusion. The reduction method is the most popular 5x5 method and was used to set the current world record. In this video I teach the Reduction Method. Turn only the outer layers, and solve it like a 3x3!.Solving the 5x5 Rubik's Cube has the same structure as solving a 4x4:
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