Older cubers discussions

[Shaky Hands]

I learned M2 3BLD over this past weekend. I haven't fully learned the S and I swaps yet, but considering I've managed to learn a bunch of COLL lately, I should have those 2 cases sewn up in the next day or two.

Time to put OP/OP on the shelf now anyway. The April UK competition has 2 round of 3BLD with 75% going through to round 2, so I have plenty of time to get my knowledge and practice sorted for that.

 

[SpartanSailor]

I learned M2 3BLD over this past weekend. I haven't fully learned the S and I swaps yet, but considering I've managed to learn a bunch of COLL lately, I should have those 2 cases sewn up in the next day or two.

Time to put OP/OP on the shelf now anyway. The April UK competition has 2 round of 3BLD with 75% going through to round 2, so I have plenty of time to get my knowledge and practice sorted for that.

Good luck in April--I've never made the second round in anything! Since starting to learn BLD, I can't find any comps within a reasonable distance that are offering 3BLD. There are always more comps popping up, but I'd like to get an official BLD solve someday too. That would be cool.

As to M2, I was looking at it (of course) right after my success with OP/OP... for now, I'm still going to stick with OP/OP. I need to find a slick way to create a quick and easy to remember memo. I don't suppose it makes much difference whether I'm using M2 or OP for edges if I'm taking forever to get the memo down.

 

[Shaky Hands]

I didn't realise competitions with 3BLD were in such short supply where you are.

The UK comp in March is, I believe, the first ever here to have no 3BLD. (Although it does have MBLD.)

 

[SpartanSailor]

Looking over the WCA competition site, there are several in the next few months, but they are all too far away for me to make it. I dont' think I can justify a plane ride, hotel and rental car for a 10 minute opportunity to get an official blind solve! HA! My wife would probably have some thoughts on that...

That said, there is no shortage of competitions local to my area... just not featuring BLD.

Question: Can you enter MBLD and only do 1 cube?

 

[openseas]

Looking over the WCA competition site, there are several in the next few months, but they are all too far away for me to make it. I dont' think I can justify a plane ride, hotel and rental car for a 10 minute opportunity to get an official blind solve! HA! My wife would probably have some thoughts on that...

That said, there is no shortage of competitions local to my area... just not featuring BLD.

Question: Can you enter MBLD and only do 1 cube?

No, you need at least 2 for "Multi" BLD.

East coast is lacking BLD events - no major players are there, it's huge in Cali and Texas.

 

[h2f]

I'm back to big blindes. It's nice feeling doing it.

 

[SpartanSailor]

My head hurts just doing single 3BLD. I am impressed with the 4 and 5 BLD. And to be honest, I’m a little more impressed with BLD solving in general now that I have had a couple successes.

The big blind stuff is just incredible.

 

[h2f]

I’m a little more impressed with BLD solving in general now that I have had a couple successes.

I hope you will get the same feeling with big blindes very soon. In fact, when you learn new things they seem difficult in the beginning and easy when you are fluent in it.

 

[JanW]

I received my stickerless WuJi today. First impression was not overwhelming, very tight and difficult to turn. But it's also my first 7x7, or anything above 5x5, so nothing to compare with. First solve... 45 minutes. Then I loosened the tensions quite a bit, put some more lube and the second solve clocked in at about 20 minutes.

Based on my previous knowledge of the 5x5, I feel like I have a clue about what I'm doing, except when it comes to the last 2 centers. Both solves I solved the last pieces with commutators. I'm sure there is some better way, just wasn't able to wrap my head around it yet.

 

[SpartanSailor]

I rarely do my 7x7 anymore, but when I do I also use commutators to solve the last two centers. I also just use brute force reduction for the edges—takes forever. It’s fun, but not something I’ll ever be fast at doing.

 

[xyzzy]

Both solves I solved the last pieces with commutators. I'm sure there is some better way, just wasn't able to wrap my head around it yet.

Commutators are the best way (usually). For 6×6×6 I have a complete list of speed-optimised last bar algs (see sig), and around half of them are based on 3-cycle commutators in some way. It's possible to use weird tricks to reduce it to 5×5×5 centres (i.e. matching up the oblique centres with the outer t-centres), but this isn't worth it most of the time.

 

[JanW]

Hah, okay, thanks! The first solve I probably spent 10 minutes trying to come up with some way to match up the last pieces. Then I "gave up" and used commutators. Good to know that this was the right decision.

 

[mitja]

Hi, oldies. while reading your posts these days, i got hooked up on 4BLD. So I tried it 2 days ago by
Corey Sakowski tutorial. Must say i like it very much. Haven't tried a blind solve yet. Just sighted rehearsing of the method. It is very logical and needed a day to learn. Of course knowing M2 helps the wings r2. Now I am in the stage to get rid of most l and r slice Algs, by using avanced M2 system to setup two stickers when i can. what is new to me, is recognising correct wing-sticker combination. And how the hell do you put all your fingers on the wings for the memo? I guess I have to start counting and forget my fingers. But, how do you now which sticker has not been used yet? At least fast enough. Probably it comes with rehearsal. I really wish I had more time for this. I just use the same lettering for centers like my corners are and the 3BLD edges letters for wings( added one more for FDl).
I seek advice about the memo and execution order? I understand the 1/4 turning centers problem with Y-perm. My order for 3BLD is memo:corners first edges last and execution:edges first corners last. But here it is so long memo, so don't know which way to go. corners/wings/centres-centers/wings/corners? or centres/wings/corners/-centres/wings/corners?
Any other tutorial advice?

 

[newtonbase]

Hi, oldies. while reading your posts these days, i got hooked up on 4BLD. So I tried it 2 days ago by
Corey Sakowski tutorial. Must say i like it very much. Haven't tried a blind solve yet. Just sighted rehearsing of the method. It is very logical and needed a day to learn. Of course knowing M2 helps the wings r2. Now I am in the stage to get rid of most l and r slice Algs, by using avanced M2 system to setup two stickers when i can. what is new to me, is recognising correct wing-sticker combination. And how the hell do you put all your fingers on the wings for the memo? I guess I have to start counting and forget my fingers. But, how do you now which sticker has not been used yet? At least fast enough. Probably it comes with rehearsal. I really wish I had more time for this. I just use the same lettering for centers like my corners are and the 3BLD edges letters for wings( added one more for FDl).
I seek advice about the memo and execution order? I understand the 1/4 turning centers problem with Y-perm. My order for 3BLD is memo:corners first edges last and execution:edges first corners last. But here it is so long memo, so don't know which way to go. corners/wings/centres-centers/wings/corners? or centres/wings/corners/-centres/wings/corners?
Any other tutorial advice?

I memo corners wings centres and execute in the opposite order.

 

[h2f]

My order was: wings, xcenters, corners and doing in the opposite order. When I did corners with OP it was often number of corners divided by 4. If it was by 2 I've added 2 yperms. I had always even number of corners because I used to solve parity to Tperm and it ment adding UBR to last corner.

My order now: corners, wings, xcenters. I solve: xcenters, corners, wings.

 

[openseas]

I memo corners wings centres and execute in the opposite order.

Same here. Corners - Wings - Centers, execution in the opposite order.

@mitja / regarding fingers, yes, better practicing tracing/memo without using anything but audio or images.

 

[newtonbase]

For OP, you only need 1, just listed 4 specific, 5 specific, one that can be used for both 4 & 5.

I've just been trying the 4/5 BLD OP alg on 5x5 but it also swaps the FR and BR x cross centres. Am I doing something wrong. The 5BLD specific one works but the one I tried is close to my 4x4 and 4BLD one so I'd like to use it.

 

[openseas]

I've just been trying the 4/5 BLD OP alg on 5x5 but it also swaps the FR and BR x cross centres. Am I doing something wrong. The 5BLD specific one works but the one I tried is close to my 4x4 and 4BLD one so I'd like to use it.

Oh, my bad: OP case, please only use 5BLD alg. Your execution was correct.

BTW, for T-center D layer, this alg is better: y m d2 m' U2 m d2 m' y': swapping Uls with Drs

 

[newtonbase]

Oh, my bad: OP case, please only use 5BLD alg. Your execution was correct.

BTW, for T-center D layer, this alg is better: y m d2 m' U2 m d2 m' y': swapping Uls with Drs

Thanks. I'll learn the alg.
I've started using ub as my T-centre buffer so use that alg but without the y move.

 

[openseas]

Thanks. I'll learn the alg.
I've started using ub as my T-centre buffer so use that alg but without the y move.

Interesting. For U2, Ub buffer requires y & y2 rotation for sides. For Ul buffer, y & y' rotation for the side. Hm, which one will be efficient?
I would say Ul since you can always use "U" instead of y for D layer swap alg but not sure.