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[Help Thread] I'm facing this really absurd issue with my 3 by 3

Discussion in 'Cubing Help & Questions' started by PuzzleGuy, Jun 22, 2018.

  1. PuzzleGuy

    PuzzleGuy Member

    23
    5
    Jun 22, 2018
    I don't know what's up, but I keep getting the second layer wrong more than half of the time. I'm new and using beginners method, I think. After getting the top layer all white and the first layer simultaneously solved, I look for edges with no yellow in them in the bottom layer. Flip such an edge toward the opposite side of the central color that is identical to the bottom color of the edge. Then do a L or R prime. Then rotate the bottom layer to the left or right respectively, and go like that. Then, get the newly messed up white corner up. The thing is, I keep getting all the bottom edges with yellow in them after repeating the process, and still my second layer is not solved. The idea is once you get all the edges with no yellow in them removed from the bottom, the second layer should be solved. But, in my case, one or more edges are flipped the wrong way. All other colors are solved. I found another similar question, and the thread helped a bit. But I want to know exactly WHY it happens. What am I doing wrong? I've attached pictures for reference. Notice the red-green edge flipped the wrong way. IMG_20180621_220255-compressed.jpg IMG_20180622_084600.jpg
     
  2. White face down, do this algorithm (with the swapped edge at the right) R U R' U' R U R' U2 R U R' U' R U R' and then insert the pair
     
  3. xyzzy

    xyzzy Member

    1,174
    617
    Dec 24, 2015
    ?????

    You simply have the edges inserted in the wrong way. Insert a yellow edge in the middle layer to bump it out, then reinsert it correctly.
     
  4. oopss i meant R U R' U' R U R' U2 R U' R' U' R U R'
     
  5. PuzzleGuy

    PuzzleGuy Member

    23
    5
    Jun 22, 2018
    Thanks for the algo. I found a similar one before. But I want to know WHY it happens. Am I solving using wrong steps? Once in a while the second layer is solved correctly too. Wrong edge occurs half of the time. It's a new cube, never disassembled, so should not be wrongly assembled.
     
  6. PuzzleGuy

    PuzzleGuy Member

    23
    5
    Jun 22, 2018
  7. xyzzy

    xyzzy Member

    1,174
    617
    Dec 24, 2015
    Mostly yes, but this can also show up "naturally" around 1/16 of the time (per slot), so you will have to deal with it when it happens.
     
    Dancing Jules likes this.
  8. PuzzleGuy

    PuzzleGuy Member

    23
    5
    Jun 22, 2018
    @xyzzy
    Oh. So it is not an issue with how my cube is assembled? In case it occurs during a competition, what happens? Also, any beginner videos you recommend so this happens less frequently and not half the time?
     
  9. xyzzy

    xyzzy Member

    1,174
    617
    Dec 24, 2015
    If you leave the edge flipped, that's considered a DNF (did not finish). You need to fix it in order to complete the solve. Here's a video tutorial for solving the second layer:


    (CubeSkills also has more advanced videos available; once you're comfortable with solving with the layer-by-layer method, you can go on to intuitive F2L, etc.)
     
    Last edited: Jun 22, 2018
  10. PuzzleGuy

    PuzzleGuy Member

    23
    5
    Jun 22, 2018
    The video was really helpful. Few tricks not taught in the popular beginner's method videos. Suppose 2 are competing, one gets a flipped edge. It means he needs a few more steps to win than the other? Just unlucky that way? Or there are rules?
     
  11. xyzzy

    xyzzy Member

    1,174
    617
    Dec 24, 2015
    Speedsolving is pretty luck-based, yeah. If you get lucky, congrats, but if you get unlucky, too bad.

    In advanced methods, bad cases like this can often be avoided or done with shorter algs. With the first layer on the bottom face, here are some common algs:
    R2 U2 F R2 F' U2 R' U R'
    R' F R F' R' U2 R2 U R2 U R
     
  12. PuzzleGuy

    PuzzleGuy Member

    23
    5
    Jun 22, 2018
    @xyzzy Okay now I get it. Thanks!
     

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