On Jan 21, 2006, at 3:49, Johannes Laire wrote:
> --- In [email protected], "kovacic81"
> <[EMAIL PROTECTED]> wrote:
>> HOW Many people have avgeraged sub 20 with petrus?
>>
>
> At least three: Anthony Hsu (17.65), Johannes Laire (18.96) and Kyle
> Allaire (19.85)

Gilles Roux was under 20 too, before he had to go found his own cult.  
There may well be more. One of my goals for the year is to learn the  
Roux method. It only seems polite. And doing U and slice moves is the  
fastest thing I can do with a cube.

I plan to get sub 20 too one day. I was pretty close on the plane to  
Orlando. And I did my best time ever the other day, 13.98. So there's  
still hope.

>> For Petrus Solves, I figure out the 2x2 (which I think is easier that
>> the cross).  I decide which corner I am going to use for the 3x2x2
>> ahead of time.  As I do the 2x2 (which becomes automatic after time),
>> I watch my CHOSEN CORNER.  Then I quickly throw it in, and have 2
>> quick edges to insert, finishing the 3x2x2.
>>
>
> I think that 2x2x2-block is much harder than cross, but maybe I'm just
> too bad. That 'chosen corner' -thing is quite similiar to what I do.

The cross seems much harder to me, since it's so spread out. But I'm  
very biased in my experience, of course. If you're a beginner, I can  
see how the cross is simpler, since the pieces don't interact much.

>>
>> WHAT IS A GOOD TIME FOR A 3x2x2?

I've actually never measured this, but I did some quick timing right  
now, and here are my (stackmat) numbers

2x2x3:          7.45 7.36 6.53 6.47 7.51
2x2x3 + OE: 6.55 14.68 7.22 8.71 9.00

If we ignore the blackout, I seem to do roughly 7 for the 2x2x3 and  
8.5 including edge orientation. I you do 6 and 10, it sounds like you  
could squeeze 1-2 seconds out of your step 3 without too much trouble.

I usually meld step 2 and 3 together a bit in that I fix one pair of  
edges while finishing up the 2x2x3. Then there's usually only 1 pair  
left.

I normally plan out the full 2x2x2 during preinspection, and usually  
while perforning that, I'll spot something more or less good to  
continue with. Just putting the corner in place is not optimal in  
number of moves, and I never do that, but I can see how it simplifies  
things in a way.

My plan/dream is to plan out the full 2x2x3 during preinspection. It  
shouldn't be too hard if you work at it. I think practicing by  
planning it all out in your mind and then executing it without  
looking would be a good way. Once you can do it, you just need to get  
it down to 15 seconds. And the blindfold experience should make it  
easier to look at THE OTHER pieces while executing it and be ready to  
continue very quickly once it's done. I'll probably never get around  
to this, but at least I have a dream.


- - - - - - - - - - - -
"He who refuses to do arithmetic is doomed to talk nonsense."
                                  --- John McCarthy

Lars Petrus - [EMAIL PROTECTED] http://lar5.com



 
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