NeverGiveUp wrote on 08/24/11 at 12:32:12:
derdudea wrote on 08/20/11 at 22:14:11:
In a corrchess game I had to face 5. ... h6 6.Be3 Ng4 7.Bc1 c5 and neither 8.dxc5 nor 8.d5 were satisfying.
After 8.d5 Bd4 9.Nh3 e5! is strong and after
8.dxc5 dxc5 9.Qxd8 Kxd8 10.h3 Lxc3! 11.bxc3 Nf6 12.Bd3 Nc6 13.f4 (Sokolov-Berg 2009) Golubevs suggestion 13...Kc7! is a huge improvement, making White the one to fight for equality.
For corrchess use, the line is not acceptable at the moment.
I looked at this a bit and saw that Sololov is 2669 and Berg is 2610 - so surely these guys must know what they're doing!
Sokolov has actually played dc5: more than once with white and has done good shop with it.
To me it seems hard to believe that one move 13. ... Kc7 would make all the difference. Strategically white is doing quite all right here I would say with the bishop's pair and pressure along the d and f files. White's doubled pawns are hard to attack here so could constitute a strength rather than a weakness. I'm currently working my way through Sokolov's excellent book
Winning Chess Middlegames and it will be interesting to see what he says about this pawn formation.
I thought so, too, and followed Sokolov, which could not be a bad idea general. But chess these days, especially using engines in ICCF - tournaments, is very concrete.
Derdudea (2277) - Campant (2425) WS/MN/060 ICCF 2010
1.d4 Sf6 2.c4 g6 3.Sc3 Lg7 4.e4 d6 5.Lg5 h6 6.Le3 Sg4 7.Lc1 c5 8.dxc5 dxc5 9.Dxd8+ Kxd8 10.h3 Lxc3+ 11.bxc3 Sf6 12.Ld3 Sc6 13.f4 Kc7 14.Sf3 Td8 15.Lb1 Le6 16.f5 gxf5 17.exf5 Lxc4 18.Lxh6 b5 19.Kf2 a5 20.Le3 Sd5 21.Tc1 Sxe3 22.Kxe3 e6 23.f6 Ld5 24.Le4 Th8 25.a4 bxa4 26.Txa4 Tag8 27.Lxd5 exd5 28.Kf2 c4 29.Td1 Th5 30.g4 Txh3 31.Txd5 Txg4 32.Sd4 Sxd4 33.Txc4+ ½–½
Golubev recommended against 13...Kc7 14.f5 but here again Black is at least equal: 14....g5 15.h4 Se5 16.Le2 Ld7 17.Sf3 Seg4 18.hxg5 hxg5 19.Txh8 Txh8 20.Sxg5 Th1+ 21.Kd2 Lc6 22.Lf3 Se5 23.Ke3 Sxc4+ 24.Kf2 Se5 25.Lb2 Txa1
It wasn´t necessary to allow White to place his rook on d5 as in the game Sokolov-Berg. Without that, White has nothing.