Here is my game from R8 of the London Chess Classic FIDE Open. It was the game I was most satisfied with in the tournament. It involved a long tactical combination that I could not see the end of at the time, but it nevertheless worked.
Black is about to break through on the queenside and wipe out White’s pawns. I find the only way to effectively breakthrough on the kingside.
What was particularly pleasing about this game is that the piece sacrifice 19.Nxf7 worked against any defence. It was a natural move that had to work, or White would just be worse. I tried hard to make it work in my calculations, and in the end I stopped calculating and just played the move. I knew it was the move that was most natural in the position – sometimes that is enough. We have to make decisions based on incomplete information, and we only discover if we were right as the game is played out over the board.