My opponent was a guy I played once, 4 years ago and had a draw. I had Black and we played Queen’s Pawn. I didn’t have a plan and couldn’t get any advantage until move 23, when I decided to play f6 and then e5. Objectively my position didn’t get better, e5 pawn didn’t look strong and after my 26… Rf5  I could get worse. But it created a dynamical position where it was easier to go wrong and he had less time. I didn’t like his 35. f3 and 36. fxe4, though computer says it was still OK.

Soon we were in the time trouble with him having 3.5 minutes vs. my 1.5. After my queen check I actually expected him to play 40. Qf3 as a natural move and saw that it is losing. Instead there was 40. Kh3 with a draw. As soon as he played it I played Rg1+. After he played Kf2 I automatically played Rf1+ and he resigned. Someone standing nearby noticed that it was a mate in 1 – 41… Qe1#.