It means avenging, revenge. My opponent was a guy to whom I lost a few times with Black, having equal score with White. So I got White, Scandinavian defense.

We followed the known line, it is better for Black to take on f3. I remembered that e6 is not good and I have to play h4, but at that moment I had kind of a moment of blindness. I thought that he can play 10… Nd7 and if I play 11. h5 he takes on e5 and after exchanges on e5 and e2 takes c2 pawn. Fritz says that I can actually catch this bishop, I didn’t see that, but he gets 4 pawns for that. But what I completely missed is that I can take on d7 and then play h5. So it looks like he has to play 10… h6 or h5, but the arising position after 11. Nxg6 fxg6 is very bad for Black, computer evaluates it as +2 and still thinks that 10… Nd7 11. Nxd7 Qxd7 12. h5 Bxc2 with Black having two pawns for the bishop is better.

I knew he will play 21… c5. The position was equal until he played 29… Rh7. Then after 31… Qe3 it was another moment of blindness, induced partly by him, because it looked like a trap for me to take the pawn. I missed that queen defends d3 square. Computer wins all shootouts after 32. Rxf5.

By move 50 I had only 8 minutes left vs. his 30. I saw that if I defend b2 he still takes the pawn with the knight because his queen attacks the bishop. So, taking into account all the circumstances I went for perpetual. He showed me Qb4 after the game where I could win “a” pawn. But seeing that Q vs. Q endgame I told him that it is likely a draw, indeed all shootouts ended in a draw. So, it wasn’t a full revenge, but I had him on the ropes.