collie system

1. d4 Nf6 2. Nf3 e6 3. c3 c5 4. e3 d5 5. Bd3 Be7 6. 0-0 0-0 7.Nd2 b6 8. Re1 Bb7 9. Qe2 Nc6 10. dxc5 bxc5 11. c4 now what should black do?

WOOF!WOOF!

I might play 11...Qd7 intending 12...Rad8🙂

Or Nb4 followed by Rb8

Originally posted by Mephisto2
Or Nb4 followed by Rb8

dont you think Nb4 is premature? and what is the idea behind Rb8? I think it is more important to develop.

Originally posted by wormer
1. d4 Nf6 2. Nf3 e6 3. c3 c5 4. e3 d5 5. Bd3 Be7 6. 0-0 0-0 7.Nd2 b6 8. Re1 Bb7 9. Qe2 Nc6 10. dxc5 bxc5 11. c4 now what should black do?

White has gotten off the beaten path of the main line Colle here. He's got no King side attack going which is what usually allows this opening to succeed. Black's already at least equal, and it looks like he's got a chance to get a hold on the center with ...e5. Seems like 11...Qc7 would support that idea.

Originally posted by wormer
dont you think Nb4 is premature? and what is the idea behind Rb8? I think it is more important to develop.

Isn't putting a rook on a half-open file development? And especially when white has been invited to occupy square b1 with his bishop?

Originally posted by Mephisto2
Isn't putting a rook on a half-open file development? And especially when white has been invited to occupy square b1 with his bishop?

so I am assuming that the bishop goes to a6. If that is right then what to do with the knight on b4?

I don't have all the answers. Ba6 is an option, but it depends on what white does. Will he allow black a queenside action?

On the knight on b4, I would expect white to chase it back to c1 at some point with a3. But that doesn't mean it was a loss of time.

Originally posted by wormer
1. d4 Nf6 2. Nf3 e6 3. c3 c5 4. e3 d5 5. Bd3 Be7 6. 0-0 0-0 7.Nd2 b6 8. Re1 Bb7 9. Qe2 Nc6 10. dxc5 bxc5 11. c4 now what should black do?

I don't play the QGA/QGD from either side, but I think this is a line of the Meran with the colors reversed.

The Colle is essentially a Semi-Slav in reverse, and the Colle-Zuckertort is essentially a QGD Tartakower variation in reverse, so a look at the themes of the Meran/Cambridge Springs/QGA may yield something valuable here.

Paul

Originally posted by wormer
1. d4 Nf6 2. Nf3 e6 3. c3 c5 4. e3 d5 5. Bd3 Be7 6. 0-0 0-0 7.Nd2 b6 8. Re1 Bb7 9. Qe2 Nc6 10. dxc5 bxc5 11. c4 now what should black do?

3.c3 is probably a ??

Originally posted by philidor position
3.c3 is probably a ??

Does it lose by force?

Originally posted by heinzkat
Does it lose by force?

I don't know? Why? Does 1.b4?? lose by force?

Originally posted by philidor position
I don't know? Why? Does 1.b4?? lose by force?

1. b4 is not ?? ?

Originally posted by heinzkat
1. b4 is not ?? ?

ok. maybe both are ? then. But not all ?? moves lose by force, do they? It's not in the definition AFAIK.