As Black in the position below, I'd played 35. … Qe5-e3 hitting the rook on d2, and if 36. Bf6 then 36. … Qxf4+.
My opponent, with only a couple of minutes to make the final move before the time control, missed this opportunity, and instead there followed 36. Rc2 Ne1 37. Ra2 c3.
Now White has another, far more difficult, forced win. Can you find that one? The second move is the hardest.