When I play the two day schedule of a three day tournament I sometimes have difficulty making the transition from G/60 to 40/2 G/60. There are three factors that may come into play. 1.)I forget to slow down. 2.) I'm restless from the opponent's slow pace. 3.) I'm tired from the previous games. I think in this particular case it was a combination of numbers 2 and 3. I found myself getting restless when my opponent went into a deep think early on. Despite my relatively short round three game of 1 hour, 20 minutes as opposed to almost two hours for rounds one and two, I was a bit tired going into round four. I suppose I could play the jet lag card, and blame on the three hour time difference.
It was one of those games where I had trouble getting the queen bishop out quickly. Also I just totally ignored all the potential pins that became problematic at the end. Two hours was enough time to torment myself. I was in no mood to play out a position against a player who took over an hour on his first 17 moves.