WC 2011 Winning Solve (28 HTM) by Sébastien Auroux

Scramble: R2 F D2 L F’ U2 F2 U’ L’ B’ L F2 U2 L2 F2 R2 U B2 U2 R2 D2
Solution: R2 U2 B2 U’ R’ F’ L’ B D B’ D R F2 R’ D L’ F’ R F R’ B2 L F L’ B2 L F’ D’ (28 HTM)

Explanation / Comment:
After a few minutes I found the following block:

2x2x2: R2 U2 B2 U’ R’
2x2x3: F’ L’ B D B’

I spent the next 20 minutes NISSing this and other beginnings I had found, then went back looking to the block again and what what I had at first not seen:

3 corners+1 twisted: D R F2 R’ D F’ R F R’ D’

with a setup before sledgehammer it gives a pure 3-cycle: D R F2 R’ D L’ F’ R F R’ L D’

The corners were placed rather bad going through my partial solution. At least I was able to cancel 2 moves at 2 spots:

3-cycle: R2 U2 B2 U’ R’ F’ L’ B D B’ . D R F2 R’ D L’ F’ R F R’ : L D’

. = F2 D B D’ F2 D B’ D’
: = B2 L F L’ B2 L F’ L’

I randomly chose the second one.

After all a very standard solution. I’m so happy that this was enough to win.

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