...
explanation:
twin 2x2x2: U D' F L D F' D' F2 B2 (9)
3th pair : B2 R' U'.R U B2 (13)
last pair + LL corners: U' F' R' F R U2 F D2 (21)
to solve last 3 edges at dot insert: F' L' R U2 L R' F' (28)
Congratz Arnaud with your very nice 26-mover!
(but I thought you did know the difference between edges & corners?)
Gus
Nice last pair + LL corners Gus, your endings are always great! I like how you and I didn't go for the obvious FL2R2 beginning (although it was the basis of my solution. I like twin 2x2x2 (opposite double X-cross) because you can turn them into adjacent double X-cross in 4 different (premoves) ways. It doesn't seem you tried to do that (your 3rd pair was short anyway)
And I usually know the difference between edges & corners, but after doing the whole weekly competition in 1 go, ending with FMC, I was a little groggy

. I think the corner insertion can be done in better ways, but I didn't care anymore. The entire solution was my 3rd try and took me 10 minutes + 10 minutes for the insertion.
And congratulations to all the 28 move solutions. It is crazy to get so many sub 30 solutions. It seems like the level of FMC keeps improving in this competition and in the official ones (lately a new WR and Grzegorz Luczyna getting a 29)