It was a last round, I was playing against the leader having 4/4 (despite of his 1442 rating). I expected him, looked at the game that I won with Back against him, but unexpectedly got White. He played French, I chose Tarrasch closed as usual and after 11 moves was on my own, as Bf4 that I remembered didn’t look alright because of Qxb2. I wanted to prevent e5, but didn’t see how and only after I played 15. Qd2 I saw that I had to provoke, not prevent e5. If let’s say 15. h3 e5 then 16. Rxc6 bxc6 17. dxe5 and I win 2 pieces for a rook. But it was already late, as now it didn’t work.

I was feeling under pressure until 23. h3, but then realized that I am OK and his position has some weaknesses including king cover. His 23… h5 just strengthened that point of view. I saw that I can play Nxh5 with the following queen check, but then I thought that Rf7 prevents it, not seeing the check on e8.  Then I saw 27. Nxg7, but again thought that it is not possible because of 27… Ne4, but White just plays 28. Nxe6 and stays the pawn up.

Instead of 31. Nd4 I could play 31. Qh4 Kg8 32. g5 and Black can’t move the knight because of g6 threat. 31… g6 was a game losing mistake.