What is the best line of the Colle to play against KID set up by Black? Playing the Colle, if Black plays g6 and then Bg7 what is the best line for White?
The English GM Simon Williams has just tweeted this -


  Just finished filming 'The Colle' a DVD for @ChessBase. I must say
  that the Colle with 1 d4 2 Nf3 3 e3 4 c3 5 Nd2 and 6 Bd3 is basically
  rubbish. But the 'Colle-Zukertort' with 4 b3 is another matter
  entirely... Learnt a lot filming this week.


That sounds reasonable to me. In other words you are wasting your time.

In general the answer to the question "Given that I always play opening X how should I use opening X to reply to opening Y by my opponent?" is nearly always something along the lines of - "You should not dogmatically play opening X in all circumstances. You should always play the position in front of you and try and find the best moves. If your opponent plays something against which your standard opening is rubbish then play something else."

Against the KID the Colle is a silly opening to play. The same could probably be said of the London. Classical lines involving putting your pawns on c4, d4 and e4 with a knight on c3 can't be bad but obviously there is a lot to learn. 

If you want to frighten your opponent and take him out of his comfort zone then something like the Barry / 150 attack should do the job. That is where you play d4, Bf4, Nf3 following up with e4 if your opponent doesn't play d5 and then aiming for Qd2, 0-0-0 and an early h4.

I believe that along with the Colle DVD he has also been working on a DVD about the Torre attack. When these are released (probably take a couple of months for Chessbase to do their editing, tidying up and marketing) you might be interested. 

Disclaimer: I have nothing to do with either Chessbase or Simon Williams although I have bought their DVDs in the past.