I was thinking the other day how I haven't made any gross blunders in a while. I didn't have long to wait. Yesterday I was playing Black in the PanovBotvinik variation of the Caro Kann against a a 1600 player, a line that I am very familiar with for at least 7 years.In this position e6 is what I am supposed to play, then White plays Qxb7 and Black plays Nxd4. But I played Nxd4 first and lost a knight to Bb5+! A very frustrating way to lose 20 points.