Fridrich to Petrus??

[abr71310]

Just wondering if there are any Petrus users that were once Fridrich clones (rofl, okay, not CLONES, just users)...

I became interested in Petrus when i realized my Edge/pair blockbuilding skills were not horrible and I understood Intuitive F2L to a point where I believed i could learn petrus...

I got 1:12 on my first timed solved (just now), which i don't think is horrible since I remember a LONG TIME AGO (when i first started cubing) I couldn't even understand the 2x2x3 block in petrus...

Also, I just wanted to know how you would recognize the bad edges quickly after building the 2x2x3; the F2L after that is quite easy for me (sub-5), and the LL (since the cross is built) is ~14 sec if I get a 1-look PLL (hehe, learned 12/21!! ^^)

I was browsing this forum as well as YouTube and the Wiki; are RUR' and L'UL triggers the ONLY ones that can fix two edges at a time, or is there an intuitive way to fix more than 2 at once (if applicable -- and how would one recognize them??)

My theory is that if I "master" (to a point) Petrus I could use it in competition where during inspection if i found an easy cross I'd do Fridrich and if i couldn't solve x-cross/cross in 5 moves i'd use Petrus... sub-20 avgs ftW!! ^^ (I'd want to get my Fridrich solves down to sub-20 first, obv. xD)

NOTE: I just looked at Petrus's site for the bad edges; they're all in diagrams and flash-y things!!! too confusing, I'm used to notation... (

Does anybody have any sites that has the cases for bad edges in NOTATION (since I memorize them easier that way... diagrams and flashy things have gone over my head now. ()

EDIT(2): second solve: 56.75
w00t... only 2 bad edges though, not hard... :\\

EDIT(3): I just did a Fridrich/Petrus decision solve in my 15 second preinspect; I ended up LITERALLY doing an x-cross because i built a block and saw the two perfect cross alignment + 2 edge pairs...

38.49. ROFLZZ

So new question as well as what I've posted here: Does the 2x2x2 or 2x2x3 block help improve x-cross building skills (if used correctly)??

 

[Johannes91]

Also, I just wanted to know how you would recognize the bad edges quickly after building the 2x2x3

I just used the rules Lars gives on his site and pretty soon it became really easy.

the F2L after that is quite easy for me (sub-5)

That's not bad. I hope you are using Steps 4a and 4b instead of "cross" and two ce-pairs; in the long run the Petrus way is much better.

are RUR' and L'UL triggers the ONLY ones that can fix two edges at a time

R U2 R', R U' R', R' F R, R' F2 R, R' F' R, L' U2 L, L' U' L, L F L', L F2 L', L F' L'

Also occasionally useful is R F U' F' R' and its variations (it fuses nicely with S2).

or is there an intuitive way to fix more than 2 at once

R L' U R' L

Other than that, just use a combination of the 3-movers.

Does anybody have any sites that has the cases for bad edges in NOTATION

You shouldn't be memorizing them. Just learn the simple ones listed above and try to understand them. The longer "algs" are just combinations of simpler ones.

So new question as well as what I've posted here: Does the 2x2x2 or 2x2x3 block help improve x-cross building skills (if used correctly)??

I'm not good at x-cross but I think 2x2x2 should be really helpful. Step 2 maybe not so much.

 

[abr71310]

the F2L after that is quite easy for me (sub-5)

That's not bad. I hope you are using Steps 4a and 4b instead of "cross" and two ce-pairs; in the long run the Petrus way is much better.

What do you mean?
-- I only use the two sides I have left to make the CE pairs, and I do them while I build the block on the bottom (so all 3 are inserted together)...

The last one HAS to be a CE pair in order to go in, so why wouldn't I use the empty slot I'm given (while still using only L/R and U)??

 

[JLarsen]

the F2L after that is quite easy for me (sub-5)

That's not bad. I hope you are using Steps 4a and 4b instead of "cross" and two ce-pairs; in the long run the Petrus way is much better.

What do you mean?
-- I only use the two sides I have left to make the CE pairs, and I do them while I build the block on the bottom (so all 3 are inserted together)...

The last one HAS to be a CE pair in order to go in, so why wouldn't I use the empty slot I'm given (while still using only L/R and U)??

I'm not too sure what you mean, but what he is saying is not to place the RD edge first(that is if you do step four with R and U like you should), and to use the most effiecient way of solving F2l, not using only a Fridrich approach. Meaning dont make a cross kind of thing coming off of the 2x2x3 block, just solve it like step 4.