Re: [Speed cubing group] PLLmemorization

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• ... I also used this system about 4 or 5 years ago. It didn t have a name back then, but people now call it the Petrich system
Message 1 of 5 , Jun 6, 2003
On Sat, Jun 07, 2003 at 12:25:39AM +0000, James Sibley wrote:

> I use the Petrus system and I want to do the LL with semi-2 looks. I
> say that because I will still flip the edges but only know 2
> orientation cases (for the corners). If I figured it right... I will
> cut 9 moves average because I do not have to swap corners. In doing
> all of this, I will start averaging about 64 moves per solve. Later on
> I might memorize all the orientation cases for the corners so I can
> cut maybe 2-3 moves. What would you call this method... Semi-Petrich?

I also used this system about 4 or 5 years ago. It didn't have a name
back then, but people now call it the Petrich system
(http://borntodie.free.fr/themethod.htm). That is, when you learn all 13
permutation and all 6 orientation algorithms. It's a good way to get
fast without learning too many algorithms (only 19).

You should learn the permutations in a useful order. Here's what I
suggest (using the symbolic names on Jessica's site):

First phase:

- "A" for moving corners (If you do corners before edges, you can just
rotate the LL around until one corner matches and apply this)
- "U" for moving edges

Second phase:

- "E" for moving corners in special case
- "Z" and "H" for moving edges in special cases

Third phase:

- Learn most common cases where you can move corners and edges in one
go: "J", "R" and "G". J is easy, G is difficult because you need to
learn how to do it forwards and backwards, left and right mirrored.
However, it is the most common case so worth the effort.

Fourth phase:

- The rest: "T", "V", "F", "Y" and "N"

For "H" in the second phase, I recommend learning:

LRU2L'R' + B'F'U2BF

which is easier to memorise.

After you learn all those, you'll find the 6 orientation algorithms much
easier to learn (they are relatively short).

Ryan
• Hi James, It took me three days to learn all PLL algorithms. I already knew the basic ones of course. And for the new ones I started with the easiest
Message 2 of 5 , Jun 6, 2003
Hi James,

It took me three days to learn all PLL algorithms. I already knew the basic ones
of course. And for the new ones I started with the easiest algorithm. F.i. for
the cases P14-P17 (http://www.speedcubing.com/final_layer_permutation.html) I
used one algorithm normal/mirrored/inverted/mirrored+inverted.

Once you know all PLL algorithms, you will start learning better finger tricks
and better algorithms. We are all still looking for better algorithms for our
worst cases. It will probably never stop...

Have fun,

Ron
http://www.speedcubing.com

----- Original Message -----
From: "James Sibley" <rocketkid14@...>
To: <speedsolvingrubikscube@yahoogroups.com>
Sent: Saturday, June 07, 2003 2:25 AM
Subject: [Speed cubing group] PLLmemorization

>
> I am about to start memorizing 17 of the 21 PLL algorithms. For all you that
have memorized them all, how long did it take you? I plan to learn one to two a
day... depending on my memory that day.
>
> I use the Petrus system and I want to do the LL with semi-2 looks. I say that
because I will still flip the edges but only know 2 orientation cases (for the
corners). If I figured it right... I will cut 9 moves average because I do not
have to swap corners. In doing all of this, I will start averaging about 64
moves per solve. Later on I might memorize all the orientation cases for the
corners so I can cut maybe 2-3 moves.
> What would you call this method... Semi-Petrich?
>
> After I learn the PLL cases, I will be able to solve the cube using Chris's
extended cross with more proficiency. Using his method, I average maybe 100
moves because I have to flip the LL edges two at a time with my own 8 move
sequence :(
>
> James SIbley
> ---------
> "My mother never saw the irony in calling me a son of a bitch" - Jack
Nicholson
> ---------
> "Black holes are where God divided by zero" - Steven Wright
>
>
> ________________________________________________________________
> The best thing to hit the internet in years - Juno SpeedBand!
> Surf the web up to FIVE TIMES FASTER!
>
>
>
>
> To unsubscribe from this group, send an email to:
> speedsolvingrubikscube-unsubscribe@yahoogroups.com
>
>
>
• Hello Ron, I would like to figure out finger tricks. It is much easier to pick them up as one is learning the algorithms. I have nice tricks for swaping two
Message 3 of 5 , Jun 6, 2003
Hello Ron,

I would like to figure out finger tricks. It is much easier to pick them up as one is learning the algorithms. I have nice tricks for swaping two corners but when I learn all the PLL cases, there will ne no need for it anymore. I can do that with an average of 4 moves/second. I solve the whole cube with an average of 1.45 moves/second on average. I am about 2.8 for the LL right now. Just imagine my F2L :-p

At the time of this writing.. I already knew 4 of the cases and I just learned 2. I am working on the 3rd one although it is 1:34 AM. I figured I will learn 4 a day. I will do it by learning one row at speedcubing.com a day. Since I know the last one on the first row... I will just assume I learned it today and call it quits :)

James Sibley
---------
"My mother never saw the irony in calling me a son of a bitch" - Jack Nicholson
---------
"Black holes are where God divided by zero" - Steven Wright

[Non-text portions of this message have been removed]
• I also spent three days, like Ron I knew a few already, from having learnt simpler systems before, then I spent two days learning all of the cases minus the
Message 4 of 5 , Jun 7, 2003
I also spent three days, like Ron I knew a few already, from having learnt simpler systems before, then I spent two days learning all of the cases minus the "3-corner + 3-edge cycles" (cases 18 to 21 on www.cubestation.co.uk) and then a day to learn the final four. Of course, the learning doesn't stop there, but once you confidently know an algorithm for each PLL case, you can be much happier about going on to learn new/better/different angle algorithms and add them to your armoury!

Good luck mate - DanH

(also no worries about last week's FMC, but hopefully there will be several more competitiors this week, yourself included! It's great to have you contesting)
----- Original Message -----
From: Ron van Bruchem
To: speedsolvingrubikscube@yahoogroups.com
Sent: Saturday, June 07, 2003 6:26 AM
Subject: Re: [Speed cubing group] PLLmemorization

Hi James,

It took me three days to learn all PLL algorithms. I already knew the basic ones
of course. And for the new ones I started with the easiest algorithm. F.i. for
the cases P14-P17 (http://www.speedcubing.com/final_layer_permutation.html) I
used one algorithm normal/mirrored/inverted/mirrored+inverted.

Once you know all PLL algorithms, you will start learning better finger tricks
and better algorithms. We are all still looking for better algorithms for our
worst cases. It will probably never stop...

Have fun,

Ron
http://www.speedcubing.com

----- Original Message -----
From: "James Sibley" <rocketkid14@...>
To: <speedsolvingrubikscube@yahoogroups.com>
Sent: Saturday, June 07, 2003 2:25 AM
Subject: [Speed cubing group] PLLmemorization

>
> I am about to start memorizing 17 of the 21 PLL algorithms. For all you that
have memorized them all, how long did it take you? I plan to learn one to two a
day... depending on my memory that day.
>
> I use the Petrus system and I want to do the LL with semi-2 looks. I say that
because I will still flip the edges but only know 2 orientation cases (for the
corners). If I figured it right... I will cut 9 moves average because I do not
have to swap corners. In doing all of this, I will start averaging about 64
moves per solve. Later on I might memorize all the orientation cases for the
corners so I can cut maybe 2-3 moves.
> What would you call this method... Semi-Petrich?
>
> After I learn the PLL cases, I will be able to solve the cube using Chris's
extended cross with more proficiency. Using his method, I average maybe 100
moves because I have to flip the LL edges two at a time with my own 8 move
sequence :(
>
> James SIbley
> ---------
> "My mother never saw the irony in calling me a son of a bitch" - Jack
Nicholson
> ---------
> "Black holes are where God divided by zero" - Steven Wright
>
>
> ________________________________________________________________
> The best thing to hit the internet in years - Juno SpeedBand!
> Surf the web up to FIVE TIMES FASTER!
>
>
>
>
> To unsubscribe from this group, send an email to:
> speedsolvingrubikscube-unsubscribe@yahoogroups.com
>
>
>

To unsubscribe from this group, send an email to:
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