I pursue a hobby called "geocaching". Currently, I am trying to solve a puzzle which requires that I identify the sonata number of 11 of Beethoven's piano sonatas, from sheet music (see attached image). As I am a neophyte when it comes to reading sheet music I'd be most appreciative if someone might be able to assist.
Upon further scrutiny, there are several sonatas which appear twice. That would mean the solution has numbers in it that repeat.