Ametanoitos wrote on 02/21/10 at 07:58:49:
@cheesemate: I think that Markovic's post was clear. He didn't had the intention to deleat your variations ofcourse. He apologised about that.
Allright. May be I was too upset - that obscure writing with Hegel and Goethe... let's forget it.
Ametanoitos wrote on 02/21/10 at 07:58:49:
...but Khalifman's and Cox's suggestion of 10.Nxd4 h6 11.Be3 Re8 12.Rc1 postponing Nxc6 and playing Na4 next seems great from a theoritical point of view.
...what conclusions does Keilhack make about 9...cxd4 and does he recomend something nice for Black against Cox's suggestion?
Keilhack deals with 9.Bg5 cxd4 on 50 pages (type-grade not more than 6 or 7) in two sub- chapters and 11 sections.
I’ll try to summarize the most important verdicts, Keilhack gives, that means I havn’t played through the whole stuff (after all it is not my pet opening, I’m sometimes so far off-beat, that Tarrasch would turn in his grave) but only read the famous last words of every section and selected the most important moves.
The first sections in detail explain the way to the green pastures of that variation, reached with 10.Nxd4 h6 11.Be3 Re8 (sub chap 2), I n the following order if changed things a little bit. I put the move you asked for, 12.Rc1, at the end. In the book it is the third section, but it could have also been placed at the end cause of the last came Keilhack has taken in the book:
A - 12.Qb3 Na5 13.Qc2 - tricky and malicious - and now
13...Bg4 (13...Nc4 14.Bf4)
14.Nf5 Bb4 (14...Rc8)
15.Bd4 Bxc3 16.Bxc3 Rxe2 17.Qd1! d4! 18.Nxd4 Rxf2 19.Qa4 Rxg2+! Compensation Kasparov -Illescas, Linares 1990. Keilhack concludes 12.Qb3 being dangerous but black can hold his own.
B - 12.Qa4 Bd7 13.Rad1 (13.Rfd1!?)
13...Nb4 14.Qb3 a5 15.a4 Rc8 16.Ndb5 (16.Nc2 b5!)
16...Be6 17.Bd4 and now
17...Ne4,
17...Bf8 or
17...Bc5 all playable
C - 12.Qc2 - simply planning to centralize the heavy pieces -
12...Bg4 13.Rfd1 (13.Rac1 Bb4!)
13...Qd7 14.Nb3 Rac8!, unclear, Kasparov
D - 12.a3 - mysterious, white somehow passes and thus wants to bring black in some sort of zugzwang, he wants to see black’s cards as the latter nearly has reached his best setup - and if it is like this, then black would have to make a move, a concession, that leads to a sort of decline. And on the other hand white slightly raises the potential of his position. Now after Qb3 Na5 he would have a2 as a refuge -
Aaaah. One can call this sophisticated or voluble (sorry for repeating it) or whatever. But to my mind this is exactly the way, one step by step has to extract the truth from a position. An so does Keilhack in his book. And thats’s why I highly prefer it over books like “Dangerous Weapons - The King’s Indian”.
So now what?
12...Be6 (12...Na5 13.Bf4! a6 14.Qd3; 12...Bf8 13.Qb3)
13.Nxe6! (13.Qb3 or 13.Qa4 are possible as well)
13...fxe6 14.Qa4 Rc8 15.Rad1 Kh8 16.Kh1 a6 17.f4 Na5 Smyslow - Kasparov, Vilnius m 1984, and now
18.Ld4! with a slight plus for white, e.g. Nc4 19.Qb3 Bc5 20.e4!
E - 12.Rc1 - complex - now he has
E a -12...Bg4 - aggressive -
13.h3 (13.Nb3 Be6 14.Bd4!? A bit difficult for black)
13...Be6 14.Kh2 (14.Qc2 Qd7 15.Nxe6 fxe6 16.Rfd1 Bf8 17.f4 Qf7 18.Bf2 Rad8 19.e4 d4 20.Nb5 e5 21.fxe5 d3! complex play Hjartarson - Illescas, where? when?; 14.Qa4!? Qd7 or 14...Ne5!?)
14...Qd7 (14...Qa5)
15.Nxc6 bxc6 16.Na4 (16.Qa4!?)
16...Bf5 17.Bc5! Bd8! 18.Bd4 Ne4 19.e3 complex, else 19.f3 idea e2-e4 was lost by Züger vs. Kasparov, Zürich 1987 clock simul
E b - 12...Bf8 - more solid -
13.Nxc6 (13.Na4 Ne5! 14.b3 Ne4 idea Ba3 or 13.Qa4, malicious, 13...Na5 14.Rcd1! Bd7 15.Qc2 Rc8 16.Qb1! Nc4?!, Polugaevsky - Illescas, France 1991, 1-0, 28, Keilhack gives 16...Be6!? 17.Nxe6 fxe6 18.Qg6!? [18.f4] Nc4!, black has resources, but white is a bit up)
13...bxc6 14.Na4 now
14...Bd7 is passive but quite solid,
14...Ng4 or
14...Qa5 are more active approaches. As a synthesis Keilhack gives
14...Re6!? 15.Bc5 Ne4! 16.Bxf8 Kxf8 untested /at least then/ e.g. 17.Bxe4 Rxe4 18.Rxc6?! (18.Nc5 Rb4 unclear) 18...Bd7 19.Ra6? Bb5.
But short before the book was sent to the publisher the game Karpow - Illescas, Leon 1993, was played, as Keilhack gives in an epilogue. He calls it the best game white has ever played against the Tarrasch.
12...Bf8 13.a3 (with the same reflections that lead to variation D - 12.a3)
13...Bg4 14.h3 Be6 15.Nxc6 bxc6 16.Bd4! (Nicely shows the double sense of a2-a3. Waiting - compared with 12.Rc1 Bg4 13.h3 Be6 14.Nxc6 bxc6 15.Bd4 the black’s extra move Be7-f8 hinders the natural Qd7. Constructive - it stops a else possible Bb4 and prepairs
the blockade b2-b4. So black begins to lack absolutely sufficient moves)
16...Bd7 17.Qd3 Nh7 18.Be3! Bd6 19.Rfd1 Be6 20.b4! Nf8 21.Na4 Ng6 22.Qc3 Bd7 23.Nc5! Bxc5 24.Bxc5! White is in full command so black gives the exchange)
24...Rxe2 25.Be3 Qe7 26.Bf1 Rxe3 27.Qxe3 1-0, 36.
Intersting all that. I think black holds, but it is a bit a struggle uphill (well, okay, that hill has only a small inclination...).
I hope I've made no typo here.
cheese
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The Tarrasch in Black and White (Read 51048 times)
