Deciphering Chopin’s shorthand in the posthumous Mazurka in F minor (2018)

https://www.henle.de/blog/en/2012/01/23/%e2%80%9cla-derniere...

ETA (& edited again to fix): If you read it while listening to the YT video in the sibling comment, you can follow along: the A section is the first two double-staves (and you can see the alternate endings and the "3ci" (trzeci) in the middle-right of the page). The B section, on the bottom-right quarter of the page, starts for the first time at 0:40 in the YT recording and goes to 1:08 or so. The C section, which is mostly crammed into the left half of the bottom two double-staves but also some stuff in the middle-left of the page, runs about 1:48 to 2:43.

Compare to one of the shorter reconstructions he mentions: https://www.youtube.com/watch?v=4ebbDnR2eyA