I ended up only covering one specific move with 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.0-0-0 Nbd7 10.Bd3 b5 11.Rhe1 Bb7 12.Qh3!? & 12.Qg3
And suddenly without me realizing it, I covered the entire variation with white's idea of sacrificinf a piece with Nd5 up to the equal endgame if perfectly played by both sides.... 3 hours covering the intricacies of 12.Qh3 is ridiculous no?
Right now I'm studying the Najdorf Sicilian and after spending 4 hours cross checking with the engine on these Bg5 lines, I realized that if i just follow computer moves until I reach a drawn position, how can I ever hope to play for an advantage.
How would you study openings in depth on all the possible variations without wasting so much time crosschecking with the computer continuously to make sure it's objectively sound?