Author: Eelco de Groot
Date: 23:50:15 02/21/06
Go up one level in this thread
On February 22, 2006 at 01:24:06, Eelco de Groot wrote:
>I think this position is a bit unclear. Shredder at 16 ply only gave +0.33 for
>Bg5, then fail-high and fail-low. The result could be of some theorethical
>importance, see my post below
>http://www.talkchess.com/forums/1/message.html?488487 But; do other programs
>also play 22.Bg5 and do they give a big advantage for White?
>
>[D]rnbq2k1/4r1p1/p2b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - -
>
>Engine: Shredder 9 UCI (200 MB, Athlon 2009 MHz)
>gemaakt door Stefan Meyer-Kahlen
>
>17 22:27 +1.02 22.Bg5 Rxe1+ 23.Rxe1 Qa5 24.Kd1 (666.458.223) 494
>
>17 26:04 +0.43 22.Bd3 Raa7 23.Kb1 Qe8 24.Qxe8+ Rxe8
> 25.Rxe8+ Nxe8 (766.596.712) 489
>
>17 26:00 +0.38 22.Bc4 Raa7 23.f3 Qa5 24.Rxe7 Rxe7
> 25.Kb1 Re1+ 26.Rxe1 Qxe1+ 27.Bc1 Qe5
> 28.a3 Qe8 29.Qxe8+ Nxe8 30.Bb2 Nc7 (764.642.249) 489
>
> Eelco
Maybe White has already a clear advantage here but then the question is, if one
move earlier Black could have played something better than 21... a6? New
testposition:
[D]rnbq2k1/p3r1p1/3b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R b - -
So far I have not found a good move:
After 21... Rf7 Pro Deo Vulcan gives
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4 6.Bd2 Be7 7.Nc3 c6 8.e4
d5 9.Qc2 dxe4 10.Nxe4 Bb7 11.Neg5 c5 12.d5 exd5 13.cxd5 h6 14.Nxf7
Kxf7 15.O-O-O Bd6 16.Nh4 Bc8 17.Re1 Re8 18.Bc4 Kg8 19.Qg6 b5 20.Bxh6
Re7 21.Bxb5 Rf7
[D]rnbq2k1/p4rp1/3b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - -
00:00:00 1.00 -4.59 22.Re7 Rxe7
00:00:00 1.01 -3.05 22.Nf5 Bxf5 23.Qxf5 gxh6
00:00:00 1.03 -1.41 22.Bxg7 Rxg7
00:00:00 1.04 0.46 22.Nf3
00:00:00 1.09 0.53 22.f4
00:00:00 1.13 0.61 22.f3
00:00:00 2.00 0.28 22.f3 Qa5
00:00:00 2.01 0.42 22.Bg5 Qf8
00:00:00 3.00 0.45 22.Bg5 Qf8 23.Bd3
00:00:00 3.03 0.45 22.Bd3
00:00:00 3.03 0.58 22.Bd3 Ba6 23.Bc4 Bxc4
00:00:00 4.00 0.35 22.Bd3 Na6 23.Bxa6 Bxa6 24.Re6 Nf5 25.Nxd5
Nxd6 26.Qa5
00:00:00 4.01 0.39 22.Bg5 Qf8 23.Bd3 Nbd7
00:00:00 5.00 0.39 22.Bg5 Qf8 23.Bd3 Ba6 24.Bf5
00:00:00 6.00 0.42 22.Bg5 Qa5 23.Bxf6 Rxf6 24.Re8 Bf8 25.Qc2 Qa3
00:00:00 6.03 0.42 22.Nf3
00:00:00 6.03 0.57 22.Nf3 a6 23.Bd3 Raa7 24.h4
00:00:01 7.00 0.37 22.Nf3 a6 23.Be8 Re7 24.Rxe7 Qxe7 25.Re1 Qc7
00:00:03 8.00 0.49 22.Nf3 a6 23.Ng5 Re7 24.Ba4 Raa7 25.Ne6 Bxe6
00:00:05 9.00 0.41 22.Nf3 Re7 23.Bg5 Nbd7 24.Rxe7 Qxe7 25.Bc6
Rb8 26.Re1
00:00:07 9.03 0.44 22.Bd2 Rb7 23.Bd3 Nbd7
00:00:13 10.00 0.46 22.Bd2 Rb7 23.Bc4
00:00:15 10.01 0.46 22.Nf3
00:00:16 10.01 0.52 22.Nf3 Re7 23.Bg5 Nbd7 24.Bxd7 Bxd7 25.Bxf6
Rxe1 26.Rxe1 Qxf6
00:00:35 11.00 0.61 22.Nf3 Re7 23.Ng5 a6 24.Rxe7 Qxe7 25.Be8 Qf8
26.Bf7 Kh8 27.Be6 Bxg3
00:00:40 11.02 0.61 22.Re6
00:00:49 11.02 0.82 22.Re6 Bf8 23.Bc4 Bxe6 24.dxe6 Re7 25.Nf5 Nc6
26.Nxe7
00:01:17 12.00 0.86 22.Re6 c4
00:02:47 13.00 1.08 22.Re6 Bf8 23.Bc4 Bxe6 24.dxe6 Re7 25.Nf5 Nc6
26.Nxe7
00:05:47 14.00 1.14 22.Re6 Bf8 23.Nf5 Qxd5 24.Bxg7 Qxh1 25.Kc2
Rxg7 26.Nxg7 Qa1 27.Ne8 Kh8
After 21... a6:
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4 6.Bd2 Be7 7.Nc3 c6 8.e4
d5 9.Qc2 dxe4 10.Nxe4 Bb7 11.Neg5 c5 12.d5 exd5 13.cxd5 h6 14.Nxf7
Kxf7 15.O-O-O Bd6 16.Nh4 Bc8 17.Re1 Re8 18.Bc4 Kg8 19.Qg6 b5 20.Bxh6
Re7 21.Bxb5 a6
[D]rnbq2k1/4r1p1/p2b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - -
00:00:00 1.00 -0.20 22.Rxe7 Qxe7
00:00:00 1.18 0.37 22.Bd3
00:00:00 2.00 0.15 22.Bd3 Nbd7
00:00:00 2.28 0.25 22.Rxe7 Qxe7 23.Bd3
00:00:00 3.00 -0.05 22.Rxe7 Qxe7 23.Bc4 Bb7 24.Qxg7
00:00:00 3.01 0.23 22.Bd3 Qe8 23.Rxe7 Qxe7
00:00:00 3.05 0.29 22.Bc4 Qe8 23.Rxe7 Qxe7
00:00:00 4.00 0.20 22.Bc4 Raa7 23.Bd2 Rf7
00:00:00 4.01 0.39 22.Bd3 Raa7 23.Bd2 Bg4
00:00:00 5.00 0.42 22.Bd3 Raa7 23.Rxe7 Rxe7 24.Nf5 Bxf5 25.Bxf5
00:00:00 6.00 0.50 22.Bd3 Raa7 23.Nf5 Bxf5 24.Bxf5 Qe8 25.Qxe8
Nxe8
00:00:00 7.00 0.56 22.Bd3 Raa7 23.Nf5 Bxf5 24.Bxf5 Qe8 25.Qxe8
Nxe8 26.Bg5 Re5 27.Rxe5
00:00:01 8.00 0.56 22.Bd3 Raa7 23.Nf5 Bxf5 24.Bxf5 Qe8 25.Qxe8
Nxe8 26.Bg5 Re5 27.Rxe5
00:00:01 9.00 0.56 22.Bd3 Raa7 23.Nf5 Bxf5 24.Bxf5 Qe8 25.Qxe8
Nxe8 26.Bg5 Re5 27.Rxe5
00:00:02 9.01 0.61 22.Bg5 Rxe1 23.Rxe1 Qa5 24.Kd1 axb5 25.Bxf6
00:00:04 10.00 0.89 22.Bg5 Qa5 23.Rxe7 Qc3 24.Kb1 Bxe7 25.Rc1 Qe5
26.Bd3 Kf8
00:00:12 11.00 0.91 22.Bg5 Re5 23.Rxe5 Bxe5 24.Bxf6 Qxf6 25.Qe8
Qf8 26.Qxf8 Kxf8 27.Ng6 Kg8 28.Nxe5 axb5 29.Kb1
Bf5
00:00:34 12.00 1.29 22.Bg5 axb5 23.Bxf6 Rxe1 24.Rxe1 Qxf6 25.Re8
Bf8 26.Qxf6 gxf6 27.Rxc8 Kf7 28.Nf5 Kg6 29.g4
Bh6 30.Nxh6 Kxh6 31.Rxc5 Rxa2 32.Rxb5
00:00:47 13.00 1.29 22.Bg5 axb5 23.Bxf6 Rxe1 24.Rxe1 Qxf6 25.Re8
Bf8 26.Qxf6 gxf6 27.Rxc8 Kf7 28.Nf5 Kg6 29.g4
Bh6 30.Nxh6 Kxh6 31.Rxc5 Rxa2 32.Rxb5
00:02:25 14.00 1.34 22.Bg5 Qf8 23.Bd3 c4 24.Bxf6 Ba3 25.Kb1 cxd3
26.Bxe7 Bxe7 27.Qxd3 Bf6
00:07:09 15.00 1.38 22.Bg5 Rxe1 23.Rxe1 axb5 24.Bxf6 Qxf6 25.Re8
Bf8
Or after 21... Rb7:
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4 6.Bd2 Be7 7.Nc3 c6 8.e4
d5 9.Qc2 dxe4 10.Nxe4 Bb7 11.Neg5 c5 12.d5 exd5 13.cxd5 h6 14.Nxf7
Kxf7 15.O-O-O Bd6 16.Nh4 Bc8 17.Re1 Re8 18.Bc4 Kg8 19.Qg6 b5 20.Bxh6
Re7 21.Bxb5 Rb7
[D]rnbq2k1/pr4p1/3b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - -
00:00:00 1.00 -4.59 22.Re7 Rxe7
00:00:00 1.01 -2.90 22.Nf5 Bxf5 23.Qxf5 gxh6
00:00:00 1.02 -1.03 22.Re8 Nxe8 23.Bxe8
00:00:00 1.04 0.52 22.Nf3
00:00:00 1.08 0.57 22.f4
00:00:00 1.11 0.63 22.g4
00:00:00 1.12 0.66 22.f3
00:00:00 2.00 0.21 22.f3 Qf8
00:00:00 2.12 0.27 22.Bd3 Bg4
00:00:00 2.21 0.32 22.Bc4 Bg4
00:00:00 3.00 0.44 22.Bc4 Re7 23.f3 Rxe7 24.Qxe7 Bg5 25.Qf7 Qxf7
26.Kxf7 Rd1
00:00:00 3.01 0.44 22.Bd3
00:00:00 3.01 0.63 22.Bd3 Re7 23.f3
00:00:00 4.00 0.70 22.Bd3 Re7 23.Nf5 Bxf5 24.Bxf5 Be6
00:00:00 5.00 0.46 22.Bd3 Qf8 23.f3 Qf7 24.Qxd5
00:00:00 6.00 0.61 22.Bd3 Kh8 23.Bg5 Nbd7 24.f4 Nf8
00:00:01 7.00 0.71 22.Bd3 c4 23.Bxc4 Qf8 24.Bg5 Qf7 25.Bxf6 Qxg6
00:00:01 8.00 0.56 22.Bd3 Bg4 23.Nf5 Bxf5 24.Bxf5 Qa5 25.Be6 Kh8
00:00:03 9.00 0.62 22.Bd3 Bg4 23.Nf5 Bh5 24.Qg5 Bf8 25.d6 Qa5
26.Ne7
00:00:06 10.00 0.62 22.Bd3 Bg4 23.Nf5 Bh5 24.Qg5 Bf8 25.d6 Qa5
26.Ne7 Kh8
00:00:18 11.00 0.60 22.Bd3 Qf8 23.Nf5 Bxf5 24.Bxf5 Nbd7 25.f4 Nb6
26.Be6 Kh8
00:00:33 11.25 0.60 22.Bg5
00:00:35 11.25 0.79 22.Bg5 Bd7 23.Bxd7
00:00:44 12.00 0.91 22.Bg5 Nbd7 23.Bc6 Ne5 24.Bxf6 Qxf6 25.Qxf6
gxf6 26.Bxb7 Bxb7 27.Nf5 Nd3 28.Kb1 Be5
00:01:19 13.00 0.90 22.Bg5 Rxb5 23.Bxf6 Qxf6 24.Re8 Bf8 25.Qxf6
gxf6 26.Rxc8 Kf7 27.Rd1 Bd6 28.Nf5 Be5
00:03:15 14.00 0.90 22.Bg5 Rxb5 23.Bxf6 Qxf6 24.Re8 Bf8 25.Qxf6
gxf6 26.Rxc8 Kf7 27.Rd1 c4 28.Rxc4 Nd7
00:10:47 15.00 1.11 22.Bg5 Rxb5 23.Bxf6 Qxf6 24.Re8
So as far as the analysis of Topalov-Anand is concerned, Topalov now still has
the upperhand! Would Veselin read CCC? I saw he is not doing too well in Mexico
at the moment at the (first leg of the ?) Linares tournament, maybe he can use
some good news. His novelty is not yet refuted!
Eelco
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.