FMC for F2L only?

lerenard

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So, I've never been that interested in FMC because it involves just trying different things until something works, which seems really repetitive, along with the necessity of learning those 3-cycle algs. But what if there was a FMC competition that
1: only required you to solve the F2L
2: was calculated in Logical Turn Metric and
3: would be performed on a physical cube, not on paper, and each move executed would count (if you take it back it would effectively count twice.)

The idea would be to look for ways to solve the F2L in as few moves as possible, since this is the only intuitive portion, and once you get to the LL you can just spam algs. It would show us who would be the best regardless of cube rotations, tensioning, TPS, etc. focusing only on the mental aspect, but not to the extent that regular FMC does.

I didn't invent LTM, but I only ever heard of it from one person (martinss) and he described it like this:
"Number of moves in Logical Turn Metric (with [A:B] = ABA', length=2 and with [A,B] = ABA'B', length=2)"

I would propose in addition that slice moves (E,M,S) be counted the same as other moves, and that 180 degree turns count the same as quarter turns.

Basically, you would be given a scramble, and the judge would count every turn you make in LTM (perhaps a videocamera would be necessary?). You would also be timed, so that people who get the same # of moves can have a tiebreaker. The idea of actually performing the moves is to make it like a real solve, just going for the most efficient way instead of the fastest. The inclusion of LTM is to make it so people can do things like R U R' U' R U2 R' U R U' R' (normally 11 moves) and it only counts for 6 moves, since the 2-gen nature of the sequence means it could be performed about as fast any other 6 moves.

The logic behind physically performing the moves instead of writing them down is so that you can't just try out different things to see what works. You either calculate it in your head or you use your instincts.

This is just a rough idea I came up with, I'm sure it could be refined quite a bit, but I want your input!
 
In a competition? I don't know about that... Something tells me people would be more interested in traditional FMC.

Not necessarily. I've never been to a comp, I was just thinking how it could be an event hypothetically. But then again there are other things like speedBD that aren't events and so I don't ever actually expect this to be a thing, I was just thinking it would be a fun idea.

@TDM: I never tried to learn them, so I wouldn't know. However, I can use commutators (learned the basics and figured everything else out myself) and sometimes if I end up with all edges solved on my LL or something during a slow solve I'll solve the corners with commutators for fun. Still, the idea of just trying out different solutions until one of them ends up being 2 moves shorter just seems dull to me.
 
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You shouldn't need to learn commutators as algs. They're intuitive.

This was the first thing I thought.

Also comes the problem that you first stated, namely the interest in the event itself. I don't find the idea interesting since down the line the event will inevitably collapse into a form of speedBLD for only F2L, except that you won't get unlimited inspection time.
 
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Really stupid idea IMO... stupid metric used and the whole cube isn't even solved. Also the judging would be near impossible.

Not nice. You can give constructive criticism without saying it's stupid. I wasn't trying to make the next biggest thing, I just wanted people's input about an idea I had.

@guysensei1: yes, R U and R U R' U' would count as the same because if you perform them both at top speed the extra R' U' doesn't take more than a fraction of a second longer.

@Ranzha: [R:U] U [R:U2] = 5 moves, although I would be open to expanding the range of sets of moves (like ABA'B, ABAB', etc.) that can be counted for less than in other metrics. I didn't come up with it, I just took it from someone who did, and I didn't want to change it in case it was some really set and decided thing I hadn't heard of before.

@everyone: I have recently learned of the existence of linear FMC, which has many of the attributes I was attempting to bring together with F2L-FMC (just thought up that acronym) so if someone could direct me to a place where people discuss/partake in that, I will gladly retire the idea of F2L-FMC (possibly the last time I'll get to use that acronym.)

EDIt: upon further deliberation, I've realized this is something that would be more useful as a training technique for me for speed solves than something that I could expect others to find interest in. So you can all stop hating now ;3
 
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