27 HTM Official Solve by Tomoaki Okayama @ Cube Camp in Kanazawa 2014

Scramble: D2 U2 B’ F’ R2 F’ L2 F D L F R’ F’ L2 F U2 L’ B2 F2
Solution: L’ U’ L D2 L’ U L U’ B’ D’ L U L’ B’ L B’ L U B U’ B’ L D U2 L’ U2 L2

Explanation:

Here is my 30 min backup solution (31 moves).

Pre-scramble: F R’

3 c/e pairs: U’
c/e pair: L’
2x2x1 block: F
2x2x2 block: L B’ L
More square: U R F2 R2
More square: U2 F
Finish Pseudo F2L: U B
All but 3 corners: L’ U’ B’ U B L
Correct pseudoness: B’ * R’
Premoves correction: F R’

Insert at *: B’ D’ B U2 B’ D B U2

In the remaining time, I found the following solution.

(Normal)

3 c/e pairs: U’
Pseudo 2x2x2 block: D2 B’ D’

(Inverse)
Pre-scramble: D B D2 U

More square: L2 U2 L
Pseudo 2x2x3 block: U2 D’
Pseudo F2L minus 1 slot: L2

(Normal)
Pre-scramble: L2 D U2 L’ U2 L2

1st square: U’
F2L minus 1 slot: D2 B’ D’ L U
Finish F2L: L’ B’ L
All but 3 corners: B’ L U B U’ B’ L’
Correction: L2 D U2 L’ U2 L2

Insert at the beginning: L’ U’ L D2 L’ U L D2

Original Post

 

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>