Its on blacks 5th move they could of attacked to b4 with he's knight but he didnt and i think it was a mistake on there part,am i missing something,would like a reply from someone who knows what im saying,cheers.England,London.

Can someone tell me on the second board where Yereslov says "goodluck in finding a mistake in this opening" i can see where blacks knight can attack to b4 threatening pawn on c2 for check on the 6th move i think but black plays pawn to f6 instead,i cant see why black didnt play the move i suggested,can anyone else see it,second board Nimzowitsch defence!

My favourite move after 1.e4

Good luck finding a mistake in this opening.

nimzowitsch,était un trés grand stratège, il suffit de lire "mon système" ou le jeu de position prend une part importante, maintenant  tout dépend de celui qui l'utilise et le but rechercher. Apprendre une ouverture et une chose en connaitre la finalité en est une autre !  le but n'est-il pas pour les noirs de s'emparer de d5 ?                 

straight away white has dominance in centre.

whats the difference between The 

Nimzowitsch Defence and The Nimzo-Indian Defence

Worked fine with me!

Hmm, Seems OK to me...

@Sgt_Black_USMC

I would not call this defence 'common', with only 3,700 games in the database.

It is not bad for Black, either.

very common and can be blocked very quick

Sometime it strong defense

2.Bb5 looks good. Reminds me of the trompowsky, lol.

Not necessarily...it is a very transpositional opening, as well as allowing for unique opening arrangements.  Maybe Nimzowitsch didn't want to commit the e-pawn so early, but even after 2. Nf3 he can easily play 2...e5 and get back into traditional king pawn lines.

cool, but I think c5 is better

It takes a lot of control because white can exert a lot of pressure in the start of the game, but I've been able to use with a lot of success