Volunteers for little Fridrich F2L study?

[Stefan]

I want to do a little study and ask for 0 more volunteers. However, more will make it more interesting, so you can still participate if you want to. I'll begin the analysis after work today.

Edit: Originally I asked to post your solutions below, I've now created an extra thread for the solutions.

- You must be a Fridrich/CFOP solver with a sub20 record average.
- Solve each scramble below, once for speed, then again to recreate and write down the F2L part of your solution.
- Don't try to get a short solution, I need your "normal" solutions.
- Scramble with your cross color on bottom.
- Make sure you have scrambled correctly, and that your solution is correct. I recommend this applet for this. If your cross color isn't white, add the appropriate cube rotation(s) in front of the scramble (e.g., add z before the scramble if your cross color is green so the applet puts green on bottom).
- If you want to, you can write cube rotations, double layer turns, parentheses, etc (just please make sure the applet accepts it). For the statistics I have in mind, however, simple UDLRFB notation is enough.
- Post your solves into this thread. Please don't read that one before you've done your own solves, unless you won't participate. I don't want you to be influenced by other people's solves.

Once I have the solutions from nine people other than me, I'll do a little analysis and posts my findings.

Now the scrambles:
D2 B' R D' R U R B F R U R F D2 L2 F R2 U' L' F R D2 F R2 L
F' D' B' L' D' R' F' D L2 R' U2 L2 B' F' L2 B' U' L' R F' B' D R' D2 U
R B2 U F' R2 U F R' B2 R' U L B2 U' R' D2 R' U' R' U' F2 U F2 B R2

 

[Pedro]

- For the statistics I have in mind you don't need to write down cube

but can I write with rotation? I find it easier...

 

[Stefan]

Yes, you can write it down with rotations if you like. Also use double layer rotations if you like. I just wanted to express that for my intended study, UDLRFB is enough.

 

[CorwinShiu]

Moved. (fill up space to character limit).

 

[Harris Chan]

Moved to the other thread.

 

[Lucas Garron]

Stefan: When you churn through the solves, could you record how many times the first two slots were adjacent, and how often they were opposite?

I'm very curious to see how close to 2/3 and 1/3 of the solves fall in these categories...

 

[Stefan]

Lucas, it's not the kind of data I intended to look for, but maybe I'll add it afterwards. For this little study, manual inspection with a little help from a program could be enough for that. The rest of what I have in mind is fully automated. Let me first do the stuff I've intended, then we'll see.

Thanks guys, I now have enough solves, but if you still want to participate, you're very welcome, as more data will only make the findings better. I've started the analysis and will continue after work today.

 

[LarsN]

I'm still not a sub20 cubist (but getting there), so just out of curiosity would a f2l solve with cross on left ruin the statistics?

I'm am a sub15 f2l solver, I'm just not to fast at the Last Layer, so I could help if you where interested in cross on left solves.

 

[cmhardw]

Stefan, I don't know if this would affect your statistics but on the second solve, had I gotten that scramble in competition, I would most likely have done my opposite cross. As to your study I would scramble with my usual cross color (white) on bottom, but I would in actuality based on that scramble have wanted to solve the yellow cross. The solution I gave was for my white cross, but would this affect your statistics? The reason I ask is that the white cross is most likely not my "normal" solution in that case.

Chris

 

[Stefan]

Ok, let me give you a hint already about the aspect that interests me most. I want to see how similar the solutions of different people are. I actually think they're mostly very different. For this reason, I restricted it to Fridrich, because I think that is the method that leaves the fewest choices, and to fast solvers, because I think they're most likely to come up with the same (best?) choices. Two Petrus solvers for example might even start with different first 2x2x2 blocks already.

And if I restrict it to the people who most likely go the same path, and find that even those go different paths, then that's a strong indication that people in general go different paths.

So in this first small test, I'd like standard fixed-color cross (i.e. not color-neutral like Chris is somewhat) and cross on bottom (i.e. not left like Lars). I admit I didn't think of these, so I guess I'm maybe lucky that all solutions I've looked at so far fall into the category I want.

This is the first test only, though. Like I said, for this one I wanted the most similar solvers. I'll be very happy to run another study, possibly with more people of any speed, more solves, and with any methods. Right now I'm still working on the program to compute all the data I want (I have a few new ideas now) and display it nicely.