A Hidden Motive
I picked this extremely interesting position from Volokitin/Grabinsky book “Perfect Your Chess”. The sample from the game GM Dejan Antic - GM Bosko Abramovic is included with the chapter “Find the Win” and it is black to move.
Obviously, the e3-pawn is located deep inside the enemy’s territory and the first instinct is to try and do something with it. But I kept looking at the diagram and couldn’t find a convenient way to continue, it appeared like white will cover up everything.

Grandmasters do look deeper into the subtleties of a chess game. Bosko Abramovic realised that Ba2 is a very unfortunate piece, that white king is in danger and discovered a hidden motive - back rank weakness!
