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Colle 3...Bg4 4.h3 Chasing the bishop

Colle 3...Bg4 4.h3 Chasing the bishop

Aug 22, 2010, 12:08 PM 2
This is the second in a series of blog posts looking at early middle game positions coming out of the Colle move order.  The first post looked at 1.d4 Nf6 2.Nf3 d5 3.e3 Bg4 4.c4 based on the principle that if black brings his bishop to the kingside it's best for white to expand and attack on the queenside.  The two positions after 4.c4 c6 5.cxd5 were pretty even though black had the initiative and decision which structure would result.  When white play 4.h3 black again decides whether to exchange on f3 so that still holds true in part.  The best play positions again look even to me.  First I'll list the variations I looked at and then make a few comments on the positions.

When black retreats the line seeems pretty forced to me.  Black's best bet in my view is 6...Nfd7 which should result in the following position.  This reminds me of a line in the QGA where white's king has trouble finding a home.  As white I think I would try to pressure the c file as well as keeping my light squared bishop on the long diagonal.  As black I'd look to drive the bishop to a lesser diagonal and look for a way for the knights to exploit white's weakened pawns.







As my computer screwed up my exchange lines I will have to save those for the next post.  Let me know what you think of this position.

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