One-Answer 2x2x2 Question Thread

Discussion in 'One-Answer Question Forum' started by Note, Dec 27, 2014.

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  1. Note

    Note Member

    *gets into 2x2 but notices it doesn't have its own One-Answer Question Thread* ._.

    Could anyone explain how they fingertrick this alg: R2 U' B2 U2 R2 U' R2? I always get a little stuck on the B2.. Also, are there any videos showing this alg preformed? ..Also, what Sub-X should I aim for after learning Ortega?
     
  2. TDM

    TDM Super Moderator

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    I do it like a U2 double flick. I'll try to upload a video (should be ~5 mins).

    E: video:


    Aim for whatever you want. I'd say sub-5 is good, then move on to learning CLL. Really, you should be learning random easy CLLs occasionally, as they can come in very useful for forcing better PBLs.
     
    Last edited by a moderator: Apr 7, 2016
  3. Antonie faz fan

    Antonie faz fan Member

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    i like this alg better: R2 U' R2 U2 F2 U' R2
     
  4. TDM

    TDM Super Moderator

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    Same, but I use the R2 U' B2 alg to avoid having to do a y2.
     
  5. Note

    Note Member

    ..Yeah.. Like TDM mentioned, the R2 U' B2 might be better due to not having to preform a y2.. Nice idea though.. :)

    Is it worth learning algs for upside down PBL cases instead of doing a z2, Like if there's a diagonal swap on top and a bar on the bottom?
     
  6. TDM

    TDM Super Moderator

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    It depends on the case, and it depends on the other algs you're learning. It could be faster to do the rotation and then the normal alg.

    For the case you mentioned, the normal alg is so fast for me, and the alternative alg R U' R' U' R' F2 U' R U R isn't that fast, so I'd probably rotate.
    For other cases, like R' U L' U' R2 U' R' U2 R U', the alg is fast enough that it'd be worth learning.
     
  7. Caddyswag

    Caddyswag Member

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    Is it a good idea to learn eg1 before cll?? The reason im asking this is because Im not the best at making efficient layers.
     
  8. TDM

    TDM Super Moderator

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    No. You probably know a quarter of CLL already, and you can go up to learning 15-20 CLLs in almost no time, because they could just be e.g. mirroring an alg, or using a 3x3 alg on a 2x2. You probably know no EG-1s at the moment, and the algs are quite different to most of what you know already. Practise your layers and try to make them more efficient. After you've done lots of layers you'll start to notice cancellations and you'll get the same layer case happening quite often, meaning you won't really have to think much. Also, make sure you're colour neutral; it's easy on 2x2 and more useful than on almost any other puzzle. Jayden McNeill has a video explaining how he makes layers here that's worth watching.
     
  9. Caddyswag

    Caddyswag Member

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    Thanks for the advice :)
     
  10. the super cuber

    the super cuber Member

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    how to find optimal solutions for 2x2 scrambles? can someone give me one for this- R U R' F' R2 U' R2 F' U' F R2
     
  11. guysensei1

    guysensei1 Member

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    Cube explorer. R U' R F2 R' U2 R U' R2
     
  12. Caddyswag

    Caddyswag Member

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    Can anyone shout me a dayan 2x2 lol xD
     
  13. guysensei1

    guysensei1 Member

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    didn't you say something like this in another thread?
     
  14. Caddyswag

    Caddyswag Member

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    Yea i accidentally wrote it in the wrong thread lol
     
  15. cbxsn

    cbxsn Member

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    How much practice would it take to get to the point where you can easily one look 6 move faces/layers comfortably in the inspection time (around 10s or less)?
     
  16. Note

    Note Member

    Possibly a lot.. Try and go watch a few example solves to see how others make the first face..
    -----
    Is there a certain trick/exercise to improve OLL/PBL recognition?
     
  17. TDM

    TDM Super Moderator

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    For PBL recognition, I look for (all of this is talking about in the same layer btw) two opposite stickers that are next to each other (e.g. if FUR and FUL are orange and red). Then look at the other face you can see that's adjacent to it, e.g. the R face. If the two colours on it are adjacent (e.g. RUF and RUB are blue and red), then you have an adjacent swap of the two opposite colours, so here there's an adjacent swap on F. If the two colours are opposite (e.g. RUF and RUB are blue and green), then you have a diagonal swap.

    You can use this for both layers to determine what PBL you have without rotations. However, it's also useful to be able to look at which CLL case you have just before you execute your OLL; it's easy to know when you're going to permute the top layer and when you're going to get a diagonal face, so the other ones are just all adjacent swaps, meaning you only need to look for the adjacent face. That way you only need to look at the bottom face's permutation, and with a bit of practise you should be able to plan that in inspection, meaning you can actually know what PBL you're going to get before you start OLL.

    I suck at explaining clearly
     
  18. Note

    Note Member

    ... I seem to have this problem of not being confident in my Ortega facebuilding. What I mean by that is that sometimes I look at the pieces I'm using to build a face, without looking ahead for the incoming OLL. (Also the same for 3x3 CFOP when I do cross and F2L) Could this be what separates improvement and mindless solves or is there something else I'm doing wrong?
     
  19. TDM

    TDM Super Moderator

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    It does take some time to get confident with your face building, but once you've practised enough you should be able to 1-look every face case immediately, because you've seen them all enough times before. If you get a case that you're confident with, then instead of looking ahead, try to see what OLL you're going to get in inspection. I can still only do this for short faces (<=3 moves), but it can be very useful. I find it really hard to look ahead to the OLL, unless I can plan it in inspection, in which case I don't need to lookahead. Looking ahead into OLL isn't going to be as useful (or even as easy in many cases) as planning it in inspection.

    What I did to help with this: I did the 4219.5 marathon thing. Or, I tried, but qqTimer started deleting times after a few thousand, so I gave up. But by forcing myself to do a few thousand solves, I had to do a lot of faces, so it didn't take long for me to be confident with pretty much every case that had at least one 1x2 bar, which is what you get at least 90% of the time. Now, when I do 2x2 practise, if the face is short enough (4 or fewer moves) I take as much time as I need to inspect to plan OLL. Gradually, planning the OLL takes less and less time, and you can do it in 15 seconds.
     
  20. Berd

    Berd Member

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    What's optimum move count for a side, and a layer?
     

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