Glancing at the clock I noticed I had about 6 seconds left. The first thing that came to mind was that his P was going to queen. So my plan was to sac the R for it, capture the a-Pawn then hope I could do something with the two passed P's against the R. That thought was all wrong, but I played…
Bad move! The correct move was 50...c4 with a likely draw. 51.Kg5 (51.Ke3 Rh2 52.Rg5+ Kc6 doesn't lead anywhere.) 51...c3 52.Rc7 c2 53.Rxc2 Rxh7
51.Kf5 was better. Then if 51...Kb3 52.Kg6 c4 and White has good chances.
No time to think. I had 2.6 seconds left. Now it's all over. 51...Kd5 would likely have held the position.
Shielding the P and winning outright.
This could have been a very interesting ending, but without time to think it got butchered. That’s why I hate speed chess. What’s the point of playing games like this?