Unbreakable ,unpenetrable, undisputable DUTCH DEFENCE
Hmm yeah i think so but he must be a super computer to predict a positional advantage with that move. :P just sayin
Black pushing c4 looks wrong positionally.
Quite.
Generally one needs to be patient against such a solid setup. It's certainly not unbreakable, solid as it may be. There are plenty of things either side can do (that I don't feel like going into; the strategies, especially against the stonewall structure[d4 f4, or f5 d5 for black], are a little complex) and as the cliche goes, the better player will most likely be the winner.