OH Tricks - How do you do U, R moves?

[pjk]

Hello,
Can someone explain in detail on how you do U and R moves with your left hand? Or how about R U' move? I am trying to get the technique of doing those moves much quicker. Thanks

 

[tenderchkn]

I'm no expert at OH and I do it right handed, but R and U turns are easier with the left hand. U' is done pulling with left index, U is done pushing with left index. For R, you have a couple of options. Dan Dzoan uses pinky for L turns, while Chris Hardwick uses ring. But the principle is the same. R is done by pulling with the pinky. R' is usually done by a little z' rotation and pulling with the index.

RU' is the easiest trigger, you just pull twice, with index, then pinky. But it takes time before you get accurate and smooth enough to get it fast.

 

[anime_file]

How do you use your pinky to turn it? Do you have to train pinky strength? It feels so unnatural.

 

[pjk]

I have been using my left ring to do R moves, and to do U moves, I use my middle finger. I can do R' and U' moves easy, but R and U gets me.

 

[tenderchkn]

That sounds so awkward. The middle finger should be used to balance the cube on the back, just like always. U2 is done pulling twice with index, instead of index/middle in 2h cubing.

R is done by pulling with either the ring or the pinky, and U is done by pushing with the index. Both are pretty awkward at first, but is essential - otherwise there's no way to do finger tricks.

The pushing will become less awkward as you do solves. The pulling, you will have to train yourself, especially if you're going to use your pinky.

Doing RU' 53 times will return the cube to its original position. Practice that until you can get sub-40 consistently. Doing it on a new cube will help progess faster.

 

[anime_file]

Well those two moves, the U' and R are pretty EZ. But sub 40? I can barely get sub 40 with two hands lol. How do you guys prep the cube? I often find that mine jams or if I tighten it and it doesn't jam, its too hard to turn.

 

[tenderchkn]

I mean 106 moves in sub-40, which is very managable.

You just have to use a well-broken in cube, and be accurate with your turns.

 

[anime_file]

I count 126? And would it be more important to have fast algorithms or less move count? Basically I'm wondering if it would be better to use a method such as petrus over fredrichs.

 

[tenderchkn]

I counted wrong. It's 63 triggers, not 53. But 126 in sub-40 should be easy.

The F2L can be done however you want. The trick is being more efficient than you are during 2h cubing. Because you're doing slower, you will be able to see each pair as you're putting the current one in. You will also need to be able to inflect your normal F2L algs so you don't have to do awkward rotations.

There are specialized 1h algorithms, but most of them are regular algorithms with modifications to make them faster for 1h. Basically, you just need to get very comfortable with LL algorithms. You'll need to learn them like you did the first time.

A 25 second solve breaks down to something like 15s F2L and 10s LL. Notice that the F2L is not that much slower than 2h.

 

[krnballerzzz]

the make it or break it point for OH solving ins the LL in general.

 

[anime_file]

Are there sites with algs for OH? I'm only using index and ring. Any videos I can see the finger tricks in action at slow speeds?

With the RU' practice I improved my time by 30 secs down to a minute now. thnx tenderchkn.

 

[tenderchkn]

Not that I know off. But like I said, there are very few specialized algorithms. Most of them are just specialized from regular algorithms. Unless there's something that's terribly awkward to execute with 1h, stick with what you already know, and learn to position your hands to optimize speed.

I found a couple of algs that were good for 1h from Stefan Pochmann: http://www.stefan-pochmann.de/spocc/speedsolving/3x3/

But other than that, I just bum off Dan Dzoan for algs.

As far as finger tricks go, again, there aren't really specialized ones for 1h. Just learn to execute basic triggers like RUR'U', RU'R'U, etc, and you'll get your times easily under a minute with minimal practice.

 

[pjk]

How do you execute R' U', or the two triggers you listed:
RUR'U', RU'R'U

I want to start practicing OH seriously and average around 40-50 seconds, but right now I'm at 1:15 with almost no finger tricks. Also, Chris has a simple guide on OH at his speedcubing.com/chris site.

Pat

 

[tenderchkn]

R'U' = z' U' z U'

It's not a full rotation, more like a fourth. In essence, it's a fine repositioning of the hands. The rotation is done in the middle of the turn, so the next turn, even if it's with the same finger, is done immediately after.

Like RU', practice the other triggers. Have you tried doing 1h with the right hand? Left hand allows you to do more intuitive turns, but rotations can always be done faster with the right hand (if you're right handed).

 

[V-te]

Bump:

Does the size of the hands affect this directly?
I've been trying it and seem to be unable to do R'...It's frustrating.

 

[janelle]

Bump:

Does the size of the hands affect this directly?
I've been trying it and seem to be unable to do R'...It's frustrating.

Personally I think it does. I have a hard time doing R' with flicking it back. I always just reach back to do it. But according to Weston, if you angle your cube better it's easier. It's around 5:25 on the Saturday guest video he made for the fiveawesomecubers.
http://www.youtube.com/watch?v=PKQUDfpxaqs

I don't know about this though. No matter how I angle my cube I can't do it that well. But then again I'm not a very good OH cuber. xD

 

[yoruichi]

use index to do R' prohessler style

 

[amostay2004]

As long as you don't have too small hands it should be easy to flick R'. I have small hands and it's not a problem to me after practising. It takes some time to get used to.