Another danger for Black may await you in 4.Nf3 if your opponent has 1.d4-Beat the Guerrillas! by Bronznik.  He claims to have improved on some of the analysis in Carpathian Warrior 2.

Hi All

I've had a soft spot for the Clarendon Court lately (1. d4 c5 2. d5 f5), and I've been doing a little home analysis on it. A lot of posts I've seen around here seem to indicate that the scariest thing for Black to face is some sort of fianchetto set-up by White, and not set-ups going for an early e4. 

I think however, after checking a few of the lines where White tries for an early e4, I've possibly found one that puts the whole thing to bed. That upsets me, because I really wanted to give the CC a go! So if anyone can find anything wrong with the following analysis, please show me! Otherwise, I suppose this might serve as good info for anyone looking for a line against it.

So 1. d4 c5 2. d5 f5 is the CC. Now there are lots of moves for white. The line I'm worried about is 3. Nc3 Nf6 4. f3!?

So white is gunning for an early e4. Black has to counter this idea, lest White get an early preponderance in the centre. So it goes like this:

4... e5 5. e4 f4

5... d6 is bad because of 6. Bb5+ and we have a problem on f5.

6. g3 d6?!

Now this is the point, Black sacs a pawn for good development (supposedly)

7. gxf4 Nh5 8. fxe5 Qh4+ 9. Ke2 dxe5 10. Nb5!

This tenth move forces 10...Na6, and then after 11. a4 White has a complete bind on the position. I can find no compensation for Black for the lost pawn. Can anyone else?

If, by the way, on the 6th move Black tries 6... Nh5?! then 7. d6 with Qd5 coming puts Black in hot water.

Can anyone solve Black's problems? Appreciate any input.