In previous blog posts we noted how important the idea of …f6 – driving away the white knight from e5 – was for Black, and how White tried to prevent it with moves such as 16.Nd4 Game: 16.Nd4 19.Qh3 Game: 19.Qh3 and 20.f5 Game: 20.f5 We saw of course that when 20…f6 finally arrived on…