Square-1 PLL Recognition
by Andrew on Feb.22, 2011, under Uncategorized
I recognize PLL with a combination of “Blocks” and “Bars” A block is two or three connected pieces, like so:
A bar is a set of connected corners. I’ve put bars in red wherever possible. The term “bar” is taken from 2×2 PBL recognition, so a bar may or may not include the edge in between the corners. (If it does, it’s also a 1×3 block):
You can tell the permutation of a layer (and its parity) by comparing blocks and bars in most cases. I’ve included some lookahead information for square-1 permutation, but the recognition part applies equally to 4×4 PLL. Listed is which EP case each permutation goes to with a proper Vandenbergh solution, and then information on 1-look permutation if it applies.
The E/X/Q cases are difficult to recognize with this technique, so I’ve added some notes to the end of the page detailing how I recognize these cases.
No parity:
U: Solved CP, goes to U, J 1 J to solve
Z: Solved CP, goes to Z
H: Solved CP, goes to H, N 1 N to solve
A: Adj CP, goes to U, J 2 J to solve
T: Adj CP, goes to U, J 4 J to solve
Ga: Adj CP, goes to U, NJ to solve
Gb: Adj CP, goes to U, JN to solve
J: Adj CP, goes to solved, J or JJ or NJ or JN to solve
R: Adj CP, goes to U
Ph: Adj CP, goes to U
Y: Opp CP, goes to U, J 5 J to solve
V: Opp CP, goes to U
N: Opp CP, goes to solved, J 6 J or N to solve
E: Opp CP, goes to Z
Parity:
Opp Edges: Solved CP, goes to opp
Adj Edges: Solved CP, goes to adj
O: Solved CP, goes to O
W: Solved CP, goes to W
Opp corners: opp CP, goes to opp
Adj corners: Adj CP, goes to Adj
K: Adj CP, goes to adj
P: Adj CP, goes to opp or adj
B: Adj CP, goes to adj
D: Adj CP, goes to opp
C: Adj CP, goes to W or O
M: Adj CP, goes to W
S: Opp CP, goes to adj
X: Opp CP, goes to O
Q: Opp CP, goes to O
Notes on E/X/Q:
These are definitely the hardest to recognize between. The trick is to look at two edges, and the corner between them, and apply the 3-color rule. If there are 3 colors, that means EP is correct, so you have an E-perm. If there are 2 colors, you have an X, and if there are 4 colors, you have a Q.
E
X
Q
Minimal Square-1 Tutorial
by Andrew on Nov.11, 2010, under Uncategorized
No explanation, just a new notation and the minimal alg list needed to learn square-1.
Notation:
R = Move the right half of the puzzle 180 degrees (clockwise)
u = move the U slice clockwise one “notch” Could be either (1,0) or (2,0) by old notation depending on what piece is to the right of the U notch.
u2 = move the U slice clockwise 2 “notches” Only used if there are 2 edges to he right of the U notch.
U = move the U slice clockwise 90 degrees. (3,0) in old notation
u4 = (4,0) in old notation
u5 = (5,0) in old notation
U2 = 180 degrees, (6,0)
Cubeshape: R u d’ R’ U’ d4′ R u2′ D R u’ d’ R U’ R
M2: u R u’ d’ R’
single EO: d’ R U’ R’ u4 d R u4′ d’ R’ U R
J/J: R U’ R’ U D R D’ R’
N/J: R U R’ U’ R U R’ U’ R
Adj/adj: d R U’ R’ u d R u d’ R’
Opp/opp: u R u’ d’ R’ U2 R u d R’
Pure parity: R U’ R’ D R D’ R’ D R u R’ d R u’ R’ u4 R d2′ R’ d2 R u4′ d R U R’
Flip E Slice: R U2′ R U2′ R
Stage 2 Added
by Andrew on Oct.27, 2010, under Uncategorized
This section discusses a few new cases for cubeshape, EO, and EP, as well as some advanced techniques for CP and the E slice.
Check it out here: http://crunchatize.me/stage-2/
Tutorial Started
by Andrew on Aug.15, 2010, under Uncategorized
I’ve started my square-1 tutorial. For now all I have is the beginner’s stage, but expect more soon.
Welcome
by Andrew on Aug.14, 2010, under Uncategorized
So, apparently I actually have a web site now. Hopefully I’ll add, like, content and shit. Eventually.