White to move.
I was playing Black, and in this position White was easily winning with Rc3! However, my opponent did not sense the danger, and went pawn grabbing:
42. Kg6 ??
White assumed there is plenty of time to stop the 'e' pawn with Rc2. That did not go so well after 42... Bb4 43. Rc2 Bd2!! 0-1
There is no defence against e3-e2.
Suddenly White has to give up the rook for the pawn, with Rc4 and Re4, but after that Black wins easily.