HgMan wrote on 03/01/08 at 13:20:59:
Recently, I have been looking at:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 fxe4 5.dxe4 Nf6 6.O-O Bc5 7.Qd3 d6 8.Qc4 Qe7 9.Nc3 Bd7 10.Bg5 a6 11.Bxc6 bxc6 12.Na4 Ba7 13.Qd3 Qf7 14.c4 O-O 15.c5 Bg4 16.Bxf6
After this, Black is faced with a choice (well, not much of a choice, but a bit of a problem):
16...Qxf6 17.Nd2 Qg6 18.f3 Bh3 19.Rf2 Be6 20.Nc4 Qh5 21.b4 Rab8 22.Qc3 Rb5 23.Na5 and Black's position starts to look pretty miserable pretty quickly.
16...Bxf3 17.Qxf3 Qc4 18.b3 Qb5 19.Rac1 Rxf6 20.Qe3 Raf8 looks like a better alternative for Black, but even here White should have good chances if s/he can keep the bishop buried...
Thats a very interesting suggestion, but albeit a very risky one, as white surrenders both his bishops, his only plus being the incarceled black bishop on a7. Black has got the bishop pair (against knights in a fluid position, better prospects on the kingside and a better grip on the central squares. But chess is not only abaout evaluations, its also a very concrete game. and in the final position of your 16....Qxf6 variation whites position has certainly got more potential than blacks (but is he really worse in such an unbalanced position?).
Anyway, I think a considerable improvement for black is to be found after 16....Qxf6 17.Nd2 Qg6 18.f3 Bh3 19.Rf2 Be6 20 Nc4 Rfb8!
The queens rook is guarding the a7 bishop, white cant get b4 in and Rb5 (or Rb4) is coming. I dont say black is better, but its quite a mess. White can try to improve with 20.b4, but also then the immediate 20...a5! (Rfb8 is an option, too) is very strong. White has to play 21.bxa5 with an unclear position, because 21.a3? fails due to the unprotected rook on a1.
I appreciate your suggestions--and it's great to have a defender of these lines for Black in this forum. I'd love to find that this is playable for Black (and if Radjabov is sticking with it, there must be something here...). But I'm not sure I agree with your evaluation after 20...Rfb8. White has the simple 21.Na5 when the c6 pawn is in trouble. Black can't get in 21...Rb5 or 21...Rb4 at this point, because of 22.Nxc6 (21...Rb4 22.Nxc6 Qe8 [22...Rxa4? 23.Ne7+] 23.Nxb4 Qxa4 24.Nd5 with some interesting complications that all seem to favor White).
This looks satisfactory for Black, who has weathered the storm, perhaps. But you're right: maybe White needs to back up a little. There should be a better way to lock that bishop in more effectively. While the position looks fairly open, White's knights enjoy considerable activity in many lines here and can't be inferior to the bishops...