Colle: Koltanowski vs Zukertort

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fionn5

Wonder if someone could explain the main differences between these two 'Colle' openings?

I believe both openings aim for a King side attack, and I'm familiar with the initial move differences, but I was wondering if there is very different middle game or end game strategies in the two openings?

For example, I believe both have difficulties against Black KB fianchetto setups, but i'm wondering if the same is true against Queens Indian setups? 

And in general, just how differently do the two systems play?

DrawMaster

Before you go too far, check out the previous forum entries on some of this:

http://www.chess.com/forum/view/chess-openings/colle-zukertort-your-experiences-please

fionn5

Thanks - I think that probably targeted my questions. 

(i had noticed that thread, but until now didn't notice and read all 4 pages, which contain alot more useful info than the first page).