Petrus questions for petrusers

[Spitfire97]

I stopped practicing ZZ and now I practice petrus because I was faster with petrus than ZZ originally
I have some questions.
who are the top ten petrus solvers? and their averages.
how to get faster at petrus?
How to practice blockbuilding?

 

[Lars Petrus]

I used to practice block building by solving for fewest moves a LOT.

That is, try to find the fastest 2x2x2 on a mixed cube. There is probably always a 6, and often a 5. If it takes 5 minutes, that's fine, you're learning!

A more ambitious way is to find the fastest 2x2x2's for each of the 8 corners. More than 8 should be very unusual.

And so on. By spending a lot of time on this you don't only get better at fewest moves, which can be a lot of fun if you're so inclined, but you also learn to recognize patterns that will scream out at you during speed solving.

 

[Spitfire97]

At least the creator of the method answered.

 

[miniGOINGS]

I have a question?

I'm going to have to answer no on that one.

 

[Spitfire97]

I have a question?

I'm going to have to answer no on that one.

fixed

 

[miniGOINGS]

I have a question?

I'm going to have to answer no on that one.

fixed

Not quite: I have multiple questions.

 

[Spitfire97]

I have a question?

I'm going to have to answer no on that one.

fixed

Not quite: I have multiple questions.

ok fixed now. arent you a rouxer, you can help me with blockbuilding

 

[miniGOINGS]

I have a question?

I'm going to have to answer no on that one.

fixed

Not quite: I have multiple questions.

ok fixed now. arent you a rouxer, you can help me with blockbuilding

I was a Rouxer, I am tring to be a ZZer. As far as blockbuilding goes, I usually try to break it up even more (like 1x2x2 to 2x2x2 for Petrus) and then as you get better you'll be able to follow the last edge and center.

 

[Spitfire97]

I have a question?

I'm going to have to answer no on that one.

fixed

Not quite: I have multiple questions.

ok fixed now. arent you a rouxer, you can help me with blockbuilding

I was a Rouxer, I am tring to be a ZZer. As far as blockbuilding goes, I usually try to break it up even more (like 1x2x2 to 2x2x2 for Petrus) and then as you get better you'll be able to follow the last edge and center.

ZZ ? too easy. and thanks

 

[miniGOINGS]

I have a question?

I'm going to have to answer no on that one.

fixed

Not quite: I have multiple questions.

ok fixed now. arent you a rouxer, you can help me with blockbuilding

I was a Rouxer, I am tring to be a ZZer. As far as blockbuilding goes, I usually try to break it up even more (like 1x2x2 to 2x2x2 for Petrus) and then as you get better you'll be able to follow the last edge and center.

ZZ ? too easy. and thanks

What do you mean? And you're welcome, I also suggest using a fixed colour scheme for a little while, just to improve recognition.

 

[Spitfire97]

I meant ZZ is easy to learn then practice with RUL blockbuilding makes ZZ a very fast method but RUL blockbuilding is crap for me.

 

[miniGOINGS]

I meant ZZ is easy to learn then practice with RUL blockbuilding makes ZZ a very fast method but RUL blockbuilding is crap for me.

Right now it's my EOline and LL that suck hardcore.

 

[Stini]

who are the top ten petrus solvers? and their averages.

Johannes Laire (Johannes91) and Erik Johnson (ErikJ) are at least both clearly sub-15. Erik has also some nice videos: http://www.youtube.com/user/CaptianCrash44

how to get faster at petrus?

Practice. And do a lot of slow solves.

How to practice blockbuilding?

Practice with optimal solvers: http://laire.dy.fi/jarcs/
Also if you aren't color neutral, at least learn to use opposite color solving so that you can take advantage of any CE-pair during inspection and build a 2x2x2-block with that pair.

 

[rckclmb124]

I know Josh Larsen is sub 15. And from what I remember Tim Sun? I think it was him was or still is fast at petrus.

 

[nigtv]

Heise has a page with a lot of good information that is probably also very useful in petrus. The page is http://www.ryanheise.com/cube/

Color neutral is a good idea, like steni said, and the two color neutrality is definitely a good idea, gives you all 2x2x2s to work with. Be aware of when you are using EOLINE (is that the word?), especially without thinking about it, Seems like a hindrance on block building.

I'd say that a really good concept to get a grasp of is treating blocks as units, and not solved portions of the cube, and learn to use that to help with edge orientation fixing.

 

[CharlieCooper]

OHAI.

I practised the method obsessively until I knew I could make optimal blocks. It's just a case of being able to recognise the pieces in relation to each other. Look at Johannes' optimal solver, that helped me loads. I've improved far slower than other people who have been cubing the same time as me, but when I do improve I seem to do so dramatically, rather than just gradually. I average about 17/18 at the moment

Top ten in the world, I have no idea.

 

[JLarsen]

I know Josh Larsen is sub 15. And from what I remember Tim Sun? I think it was him was or still is fast at petrus.

I've been told Tim Sun practiced Petrus quite seriously before I ever got into it, and he has got more sub 10's than I have with Petrus. He's quite good with it still.

I used to practice block building by solving for fewest moves a LOT.

That is, try to find the fastest 2x2x2 on a mixed cube. There is probably always a 6, and often a 5. If it takes 5 minutes, that's fine, you're learning!

A more ambitious way is to find the fastest 2x2x2's for each of the 8 corners. More than 8 should be very unusual.

And so on. By spending a lot of time on this you don't only get better at fewest moves, which can be a lot of fun if you're so inclined, but you also learn to recognize patterns that will scream out at you during speed solving.

I know you are quite the FMC solver and your solves are very efficient. Quite fun to watch. I tend to be a little more brute force though. The vast majority of the time whatever block I see first I'll use. I can see the whole block about 80-90% of the time. I do this to keep the block simple, because I find the worst part about petrus is assembling the 1x2 block to add on to the 2x2 block without delaying. That step is my least efficient, and always has been.

So if I was going to give a big tip, most likely, in the beginning you will expand to 2x2x3 in only one direction, with 2x2 in a certain orientation, and with only certain layers. This is a bad habit that you'll have to break at some point to get pretty fast. What I did was I learned "Cross on left" style 2x2x3 expansions, and I can expand with all different kind of angles. For instance the one people think that is most odd that I use fairly frequently is holding the 2x2 block on FDL, and expanding to BDL, because all the pieces are out of sight, but really, it's kind of like a Fridrich back slot kind of thing. Just do slow solves, and work on being able to do everything form multiple angles, with efficient, somewhat finger friendly solutions. I did thousands of slow solves to get from ~21 to ~18.

 

[Cyrus C.]

Try to break the blocks down even further: Make 2 1x2x2 blocks & then join them for the 2x2x2. For the Finishing the F2L, Make a 1x2x2 block, insert it, then just fridrich pair for the last one, that's how I did it. Try practicing block building by taking a random scramble and solving off all 8 of the corners.

 

[JLarsen]

Try to break the blocks down even further: Make 2 1x2x2 blocks & then join them for the 2x2x2. For the Finishing the F2L, Make a 1x2x2 block, insert it, then just fridrich pair for the last one, that's how I did it. Try practicing block building by taking a random scramble and solving off all 8 of the corners.

2x2x2 = 2 1x2x2 blocks? Do you mean make a 1x2x2 block, and then move the last edge into place?

Also, to the author of this thread who's name I can't recall, use full Petrus. No one I've ever heard of has got sub 20 average using Petrus without the bad edges step, and using fridrich style slots to finish F2L. I'm not saying use COLL only, the LL isn't what I'm talking about, I mean all of the substeps for Petrus F2L.

 

[Cyrus C.]

Try to break the blocks down even further: Make 2 1x2x2 blocks & then join them for the 2x2x2. For the Finishing the F2L, Make a 1x2x2 block, insert it, then just fridrich pair for the last one, that's how I did it. Try practicing block building by taking a random scramble and solving off all 8 of the corners.

2x2x2 = 2 1x2x2 blocks? Do you mean make a 1x2x2 block, and then move the last edge into place?

Also, to the author of this thread who's name I can't recall, use full Petrus. No one I've ever heard of has got sub 20 average using Petrus without the bad edges step, and using fridrich style slots to finish F2L. I'm not saying use COLL only, the LL isn't what I'm talking about, I mean all of the substeps for Petrus F2L.

The latter is what I meant.