I was viewing a top-level Correspondence chess game on ICCF between an International Master and a Senior International Master. They both had over 100 days on their clocks and they were in the following position with black to move:
r2r2k1/p1q2ppp/1p2pn2/8/2P5/1P3NP1/P3QP1P/3RR1K1 b - - 0 1
It seems that with so much time on their clocks and with the use of top-level engines and concrete analysis there is no way that white is pushing for anything here. I have also seen other games like this and my question is essentially why are they playing on in such positions?