u/Imaginary_Disaster76

Looking for recommendations on difficult calculation books. I've recently managed to trudge through the Aagard Calculation book on the recommendation of everyone that gets asked about calculation books. For reference, im 2100 FIDE (closer to 2200 at this point). I don't mind books that don't have calculation as the main topic as long as there are difficult problems in the book, so any book that does that is welcome :)

I've recently switched to a Nimzo/Semi Slav repertoire and even though my results online have been good at a reasonably high level and I've done a great amount of work on the Semi Slav (The Nimzo I knew from before) I still feel there is probably an experience gap.

My question to the Semi Slav players would be what you guys know that maybe someone newer to the Semi Slav might not know? This can range from highly specific advice to general understanding, all insight is appreciated :)