- Jun 9, 2015
CSP is a very solid method. Given unlimited inspection I've been able to get sub 12 averages with it. The main issue is getting inspection down from personal experience. I'm not a great blind solver so that might attribute to this, but it seems possible to get it under 15 seconds. I feel that in the future someone will be able to get it down and use it in a competition and be quite successful with it. I know Bobthegirraffemonkey has been able to do this in competition before.Just idly doing some thinking solves - for easy cubeshapes (<= 3 twists), I can generally trace cubeshape + obl in around 30 seconds. Because of this, I think that CS+OBL is actually something doable in inspection, given quite a bit of time investment. My thoughts here are that one can (similar to Ty's suggestion on using something like Mike's sq1 bld cubeshape idea) fairly easily learn how to track what pieces go where for cubeshape - this is even "easier" than a fullblown version, since learning all the <=4 twist cases is only something like 30 total cases, and tracking a single slice or two should be easy enough to go with [given my above experiments]. Since you only need to care about OBL, you end up ignoring a lot of information that would otherwise be necessary for CSP.
Given this, I think a reasonable 2.5/3-look Square-1 method is CS+OBL -> PBL (CPP -> EP). I think this is good, because in my experience, the OBL -> CP transition is inherently worse than the EO -> CP transition, so the generally-cited downside of "extra time of inspection" for CPP is actually minimized a good deal. Plus, since you have to slow down anyway for the PBL recognition, like with CPP before, you get the easy benefit of having immediate use for any PBLs you _do_ learn - like learning COLLs when you already predict the CPLL after doing your normal OLL alg.
As confirmation of a previous point, full PBL does indeed take thousands of algs, 'tho only a small number of thousands - since there are 43 PLL cases with mirrors/inverses excluding the solved case, there are 44^2 - 1 = 1935 total PBLs. If you can guarantee that it's even parity, then it drops down by half, to 967, but that's still a bunch - somewhere between full ZBLL and full 1LLL, as a point of comparison (mirrors/inverses are generally much easier to learn on 3x3, because they flow better; Square-1 doesn't have similar luxuries, a lot of the time).
However, I think that CSP will become a much more attractive method given more research into it, and I hope that someone can figure out a good way to do that sub-12. I think CSP+OBL -> PBL is basically only an FMC technique at this point, and will remain so for at least a couple years, but I hope I'm proven wrong. Being able to 2-look a solve definitely feels pretty awesome, from experience