My post on “Weird” F2L is the most viewed on this site, and features the most popular video on my Youtube channel — with continuing thanks to CBC! So, I decided to copy the same format to showcase three more tough (at least for me) F2L cases. It turns out that these actually are easy cases. It’s just that the “intuitive” approaches are clunky, and the easy approaches non-intuitive.
Here’s the video tutorial, followed by table contrasting my old (intuitive) approaches against these improved ones:
(music: New Mastersounds, “You Mess Me Up”; cube: Maru CX3 w/ stock stickers)
| CASE | OLD | IMPROVED |
| #13 |
d (R’ U R) U’ (R’ U’) R (R’ U R) U (R’ U’ R) d’ |
(R U’ R’) U (R’ F R F’) (R U’ R’)
|
| #29 |
y (L’ U’ L U) (L’ U’ L) (F’ U F) (R U R’) U2 |
U2 (R U’ R’) (F’ U’ F) U2 (R U’ R’) y (L’ U’ L) (Crazy Bad Cuber) alt: (R’ F R F’) U (R U’ R’) |
| #36 |
d (R’ U’ R) d’ (R U R’) (R U’ R’) d (R’ U R) d’ |
U2 (R’ F R F’) U2 (R U R’) U (F’ U’ F U’) R U R’ |
* setups (inverses) written in red
Now the chore of keeping these all separated in my mind and muscle memory!
adventures in cubing 
For Case 29, I use (R’FRF’)2, its pretty fast
Yeah, the seldgehammer is a good way to pair them. That’s my preferred approach. I typically will insert after a U, rather than doing the double sledgehammer (only because it feels awkward doing it twice).
Yeah, reverse sexy does leave you in a better position for look ahead(easy concept, hard to master:P), but on the other hand, I personally find the double sledgehammer to be faster with my turning style, either way, its one of the faster f2ls.