[Help Thread] F2L Discussion and Help

[DeeDubb]

정말요? 부모님은 한국 사람들인데 저는 미국에서 11년 살아서 한국에 왔어요

"Really? my parents are Korean, but I lived in America for 11 years and then came to Korea."

네. 혹시 큐브매니아 아니면 큐브 facebook 그룹에 혹시 활동하세요??

"Yes, by chance are you on Cube Mania (Korean cubing community), if not, are you in the Korean Cube Facebook group by chance?"

큐브 매니아 카페 방금 가입 했어요 ㅋㅋ AmericanCuber입니다

"I just registered on Cube Mania. I'm AmericanCuber"

I should put this in the accomplishment thread, Translating this without the help of google

 

[jms]

Impressed!

 

[PurpleBanana]

Quick query about learning lookahead. Many sources say that you should first familiarize yourself with the cases and be able to do them without looking. I can do this but I end up with very choppy solves where I have a flurry of moves and then a pause to find the next case. I'm worried that if I keep solving this way it will become ingrained and I will have a harder time switching to lookahead. Advice?

 

[SpeedCubeReview]

Quick query about learning lookahead. Many sources say that you should first familiarize yourself with the cases and be able to do them without looking. I can do this but I end up with very choppy solves where I have a flurry of moves and then a pause to find the next case. I'm worried that if I keep solving this way it will become ingrained and I will have a harder time switching to lookahead. Advice?

First, I would just slow down. Don't worry about the time/speed of your solve when you are doing them without looking. It is good that you are getting the moves in your muscle memory. That is the goal.

In my opinion, Look ahead is not a step to learn. It should be something that you are always doing. Any video game you are looking ahead of whatever character you are controlling. Musicians will read a little in front of what they are playing. Always try to think or look ahead of what you are doing. It may only be one turn, but as you get better you will be able to see entire steps ahead. Keep it up! :tu

 

[obelisk477]

Quick query about learning lookahead. Many sources say that you should first familiarize yourself with the cases and be able to do them without looking. I can do this but I end up with very choppy solves where I have a flurry of moves and then a pause to find the next case. I'm worried that if I keep solving this way it will become ingrained and I will have a harder time switching to lookahead. Advice?

What cube do you use?

 

[PurpleBanana]

In my opinion, Look ahead is not a step to learn. It should be something that you are always doing.

That was what I was looking for, thanks. I've heard a lot of people saying otherwise.

 

[Mr Beast]

Can anyone link me to somewhere good where I can learn all the f2l cases. I know a good few of them from my own intuition, but there are a few awkward ones that take me ages and I'm going to have to learn algorithms for them.

 

[obelisk477]

Here. You should learn algs for cases 12, 15, 22, 23, 24, 25, 26, 29, 31, 36, 37, and maybe 41 and 42. This is a little subjective, but most of these have algs that are non-trivial, or at least not necessarily obvious.

 

[CubeCow]

My F2L is suffering. I have a 40 sec average F2L (not including cross). I use intuitive. Am I suffering in look ahead, or do I need faster turn speeds?

 

[cashis]

My F2L is suffering. I have a 40 sec average F2L (not including cross). I use intuitive. Am I suffering in look ahead, or do I need faster turn speeds?

We cant really tell you without a better description of your solves.

 

[Estimax]

At your time, I think you should just turn faster rather than look ahead. Look ahead is a (sort of) intermediate-advanced technique, and since you are averaging 40 seconds, just turning faster would help immensely.

(don't trust in my word alone, I average 14 seconds, so im not necessarily an expert)

 

[mark49152]

My F2L is suffering. I have a 40 sec average F2L (not including cross). I use intuitive. Am I suffering in look ahead, or do I need faster turn speeds?

Neither. You should focus on becoming proficient at F2L before you focus on speed.

A good F2L solution will be around 30 moves on average. If you allow 2 sec to find each pair (no lookahead) and 2 tps to then solve each pair (slow), that's still only 23 sec.

At 40 sec, you are either using way too many moves, or pausing way too long to look for each pair. Slow solving and studying efficient solutions are the best ways to improve that.

 

[stoic]

Anyone got a good rotationless solution for the green-orange pair here (blue is front)?

If I don't rotate I tend to kick the pair out, and then insert with l U L' U' M but it's kinda...ugly...

 

[martinss]

Anyone got a good rotationless solution for the green-orange pair here (blue is front)?

If I don't rotate I tend to kick the pair out, and then insert with l U L' U' M but it's kinda...ugly...

Is r d' R d r' rotationless for you ?

 

[stoic]

Is r d' R d r' rotationless for you ?

Yeah I don't mind d moves, cheers

 

[jamessorsona]

My tip is to find ways to insert pairs from the back and efficiently. How I look-ahead is when I am inserting a pair I look for the next one immediately. Multi-slotting F2L is useful if you're really lucky and experienced on F2L.

 

[stoic]

I'd also love a good solution for this one - red/blue pair going from BR to FR please?

 

[David0794]

I'd also love a good solution for this one - red/blue pair going from BR to FR please?

Maybe u R U R' U' R U R' u' R U R'?

 

[penguinz7]

I'd also love a good solution for this one - red/blue pair going from BR to FR please?

I would do y (R U R' U') R U R' y' R U R'
David's is also quite good, (and also basically the same thing.)

 

[stoic]

Thanks for the replies guys, great algs. :tu
I've adopted them both for the different angles.