Blunder (9)

In the diagram below you see a position from Bacrot - Bareev (Moscow 2010). White is an exchange down but has big pressure on the e-file. Since Black will lose a piece anyway he decided to play 19.- Qxd4??

Better would have been 19.- Be6 20.Rxe6 Qxd4 (if 20.- fxe6?? 21.Bxe6+ Kh8 22.Bxe7! and Black cannot take the bishop because of Ng6+ and Qh3+)

After 19.- Qxd4?? White played 20.Bxf7+ and Black resigned (21.- Kxf7 22.Rxe7+).