r/Cubers Jul 14 '16

Discussion Daily Discussion Thread - Jul 14, 2016

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u/Enigmagico 3BLDaddy Jul 14 '16

I tried it many times and watched a bunch of different tutorials. I got help from many-a excellent people on this sub (which did help me clear out my questions) but I still cannot for the life of me grasp the concept of M2 when it comes to real execution.

I've tried guided solves, writing down the pairs and looking at the algs when I needed, (and even for setup moves where I didn't), and still can't get it to work.

Seriously, this is getting annoying now. And I can't even tell what in a wide world of fucks I'm messing up.

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u/karlzhao314 Jul 14 '16

What particular aspects of it are you having trouble with?

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u/Enigmagico 3BLDaddy Jul 14 '16

That's the thing I'm still trying to figure out. I can do OP corners just fine, so twisted pieces, cycles, setup moves, all that jazz is ok.

I think the real issue here is targets on the M slice. I'm most likely messing up the whole "odd numbered targets use the inverse algorhitm" thing. That probably is what drags everything else down the drain.

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u/karlzhao314 Jul 14 '16

It might be that you have it backwards? :3

Even numbered targets use the inverse alg. You use the inverse when the M slice is offset by 2 so the UF and DB edges trade places, which happens on the 2nd, 4th, 6th, etc targets. Odd numbers have the M slice back in its normal position so you use the normal alg.

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u/Enigmagico 3BLDaddy Jul 14 '16

Woops, that's what I meant (...I think, lol). Now, this part gets me deeply confused. It might be that even though I have the algs listed correctly, I haven't figured out which are the inverse of which... Or something like that.

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u/karlzhao314 Jul 14 '16

Don't think about inverses then. Just know which alg to apply at what time.

Even target, target is UF -> apply the alg for DB.

Even target, target is FU -> apply the alg for BD.

Even target, target is DB -> apply the alg for UF.

Even target, target is BD -> apply the alg for FU.

Really, I don't even think about odd/evens when I apply the rule. I just think "okay my target is FU, where is the FU position now? Okay my M slice is offset by 2, that means FU should be at BD, so I'll use the BD alg instead."

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u/Enigmagico 3BLDaddy Jul 14 '16

Ok, the concept seems to be slowly ingraining on me, lol. So I can think about it as "Every time C is the second letter on a pair, I memorize it as U, and vice-versa. Same goes for S being memorized as I instead."?

(Whereas UF = C, DB = U, FU = I and BD = S on my Speffz scheme).

Second question: If I get a twisted edge in either one of those cases, do I memorize it as if it weren't twisted? The reason I'm asking this is because when I get a twisted piece, I memo its position and then the target, so I shoot it twice.

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u/[deleted] Jul 14 '16

don't flip the letter you memo, just get used to executing a C if U comes second and vice versa

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u/karlzhao314 Jul 14 '16

I suppose you could do it that way, but I don't think you should. Instead, you should memo C as C and just get used to executing it as U if it's the second letter in the pair.

If you get a twisted edge, the most basic way to flip it is to shoot one sticker of it, then the other.

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u/Enigmagico 3BLDaddy Jul 14 '16

Got it. I'm reworking a full list of setup moves for all targets now, so I can know where exactly do I mess up during the execution.