• Welcome to the Speedsolving.com, home of the web's largest puzzle community!
    You are currently viewing our forum as a guest which gives you limited access to join discussions and access our other features.

    Registration is fast, simple and absolutely free so please, join our community of 35,000+ people from around the world today!

    If you are already a member, simply login to hide this message and begin participating in the community!

[Help Thread] Skewb Discussion and Help

Ranzha

Friendly, Neighbourhoodly
Joined
Jul 24, 2009
Messages
2,550
Likes
95
Location
Reno, Nevada, United States
WCA
2009HARN01
YouTube
RanzhaTheLoneVlogger
#66
It's occurred to me that there are a multitude of notation systems for skewb, and with a skewb milestone right around the corner, I think that a lack of a standardized notation system will make generating and sharing algorithms a nightmare.

Because of this, I'd like to propose a notation system that maintains WCA FCN while labelling the other four corners based on other existing notation systems:

Standard Skewb Notation Proposal

The puzzle is held with three faces fully visible, where the U face is on top, the F face is on the front-left, and the R face is on the front-right.
The D face is opposite the U face, the L face is opposite the R face, and the B face is opposite the F face.

The corner piece adjacent to the square-shaped centre pieces of any three adjacent faces A, B, and C, will be said to be in the ABC position.
Thus:

U is a clockwise twist of the layer around the UBL corner.
R is a clockwise twist of the layer around the DBR corner.
L is a clockwise twist of the layer around the DFL corner.
B is a clockwise twist of the layer around the DBL corner.
The four twists listed above comprise the official WCA scrambling notation for Skewb, also known as "WCA FCN".

F is a clockwise twist of the layer around the DFR corner.
r is a clockwise twist of the layer around the UBR corner.
l is a clockwise twist of the layer around the UFL corner.
f is a clockwise twist of the layer around the UFR corner.

' inverts a move.

How does this sound?
 
Joined
Sep 25, 2011
Messages
982
Likes
292
Location
P(r)oland
WCA
2012SZEW01
YouTube
SajwoPL
#69
It works nice, if we got opposite centers on R/L or U center is on F/U/B face. But sometimes nothing matches (it propably requires sledge/hedge at least 2 times) and I have no idea how to solve that. It would be great if somebody could post these three 1-look algs.
 
Joined
Jul 7, 2010
Messages
575
Likes
0
Location
Colombia
WCA
2011VARG01
YouTube
TiLiMayor
#70
Force one of the other centers to be solved instead. Can force at least one centre solved with 2 sledge/hedge every time. I never use the cat3 cases.
Could you elaborate.. Im having a hard time recognizing/performing the cat3 cases..
How you determinate if either do hedge or sledge to place on top the forced center? or am I just totally misunderstanding this?
 

Ranzha

Friendly, Neighbourhoodly
Joined
Jul 24, 2009
Messages
2,550
Likes
95
Location
Reno, Nevada, United States
WCA
2009HARN01
YouTube
RanzhaTheLoneVlogger
#71
Could you elaborate.. Im having a hard time recognizing/performing the cat3 cases..
How you determinate if either do hedge or sledge to place on top the forced center? or am I just totally misunderstanding this?
Sledge and hedge do the same thing to the centres. F and B swap, U and R swap.

If you take this understanding of how sledge and hedge work to a deeper level, you could force a centre adjacent to your layer to solve instead of attempting to solve the U centre.

Then what you're left with is just a L4C+CLL case from my method =)
 

Ranzha

Friendly, Neighbourhoodly
Joined
Jul 24, 2009
Messages
2,550
Likes
95
Location
Reno, Nevada, United States
WCA
2009HARN01
YouTube
RanzhaTheLoneVlogger
#73
And as for corners, both are a Pi orient/no swap right?
Yep!

Property of skewb: Once the corners of one layer are permuted, so too are the corners of the opposite layer. The alignment of the two tetrads of corners with respect to each other can be done in at most two twists.
 
Top