Author: M Hurd
Date: 00:00:11 02/22/06
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 Hello Eelco Fritz 9 and Rybka seem to like Bg5 New game - Junior 9 rnbq2k1/4r1p1/p2b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - - 0 1 Analysis by Junior 9: 1.Bxa6 Rxa6 2.Nf5 Bxf5 -+ (-2.37) Depth: 3 00:00:00 1kN 1.Be2 Nxd5 2.Bd3 = (0.13) Depth: 3 00:00:00 1kN 1.Bd3 Nbd7 ± (0.99) Depth: 3 00:00:00 2kN 1.Bd3 Qe8 2.Rxe7 Qxe7 3.Bc4 ² (0.60) Depth: 6 00:00:00 42kN 1.Bc4 Bh3 2.Rxe7 Qxe7 3.Kb1 ± (0.82) Depth: 6 00:00:00 56kN 1.Rxe7 Qxe7 2.Bd3 Bd7 3.Nf5 Bxf5 4.Bxf5 Nxd5 ± (0.94) Depth: 6 00:00:00 75kN 1.Rxe7 Qxe7 2.Bd3 Qf7 3.Be3 Bb7 4.Qxf7+ Kxf7 5.Bg6+ Kg8 ± (0.75) Depth: 9 00:00:00 377kN 1.Bd3 Raa7 2.Kb1 Be5 3.Nf3 Qxd5 4.Nxe5 ± (0.80) Depth: 9 00:00:00 774kN 1.Bd3 Raa7 2.Nf5 Bxf5 3.Bxf5 Qe8 4.Qxe8+ Rxe8 5.Rxe8+ Nxe8 6.Be6+ Kh7 7.Be3 Nd7 ² (0.59) Depth: 12 00:00:05 10007kN 1.Bd3 Raa7 2.Nf5 Bxf5 3.Bxf5 Qa5 4.Be6+ Rxe6 5.Rxe6 Qxa2 6.Rd1 ± (0.88) Depth: 14 00:00:22 42207kN 1.Bd3 Raa7 2.Bd2 Nbd7 3.Rxe7 Qxe7 4.Nf5 Ne5 5.Nxe7+ Rxe7 6.Bf4 Nxg6 7.Bxd6 Rd7 8.Bb8 Ne7 9.d6 ² (0.37) Depth: 16 00:03:32 398669kN 1.Bc4 Raa7 2.Bf4 a5 3.Rxe7 Rxe7 4.Bxd6 Qxd6 5.Kb1 a4 6.Rc1 axb3 ² (0.46) Depth: 16 00:06:40 751497kN New game - Rybka 1.01, 120'/40+60'/20+30' rnbq2k1/4r1p1/p2b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - - 0 1 Analysis by Rybka 1.01 Beta 13d 32-bit: 1.Bd3 = (0.21) Depth: 3 00:00:00 1.Bd3 = (0.13) Depth: 4 00:00:00 1.Bd3 Raa7 = (0.22) Depth: 5 00:00:00 1.Bd3 Rb7 2.Nf5 ² (0.58) Depth: 6 00:00:00 24kN 1.Bd3 Rb7 2.Nf5 Bxf5 ² (0.56) Depth: 7 00:00:01 42kN 1.Bd3 Rb7 2.Nf5 Bxf5 3.Bxf5 c4 ² (0.45) Depth: 8 00:00:02 66kN 1.Bd3 Raa7 2.Bd2 Be5 3.Qg5 Bd4 ² (0.32) Depth: 9 00:00:07 237kN 1.Bd3 Raa7 2.Bd2 Be5 3.Qg5 Bd4 4.Ng6 ² (0.47) Depth: 10 00:00:16 539kN 1.Bd3 Raa7 2.Bd2 c4 3.Bxc4 Qb6 4.Nf5 Bxf5 ² (0.43) Depth: 11 00:00:31 1016kN 1.Bd3 Raa7 2.Nf5 Bxf5 3.Bxf5 Nbd7 4.Be6+ Kh8 5.Bg5 Nf8 6.Qf5 ² (0.35) Depth: 12 00:01:22 2540kN 1.Bg5 Rxe1+ 2.Rxe1 axb5 3.Bxf6 Qxf6 4.Re8+ Bf8 5.Qxf6 gxf6 6.Rxc8 Kf7 7.Nf5 Rxa2 ± (1.01) Depth: 12 00:02:03 3756kN 1.Bg5 Rxe1+ 2.Rxe1 axb5 3.Bxf6 Qxf6 4.Re8+ Bf8 5.Qxf6 gxf6 6.Rxc8 Kf7 7.Nf5 Rxa2 ± (1.07) Depth: 13 00:02:38 4913kN 1.Bg5 Rxe1+ 2.Rxe1 axb5 3.Bxf6 Qxf6 4.Re8+ Bf8 5.Qxf6 gxf6 6.Rxc8 Kf7 7.Nf5 Rxa2 ± (1.31) Depth: 14 00:04:13 7923kN 1.Bg5 Rxe1+ 2.Rxe1 axb5 3.Bxf6 Qxf6 4.Re8+ Bf8 5.Qxf6 gxf6 6.Rxc8 Kf7 7.Nf5 c4 ± (1.01) Depth: 15 00:06:27 11792kN New game - Fritz 9, 120'/40+60'/20+30' rnbq2k1/4r1p1/p2b1nQB/1BpP4/7N/1P4P1/P4P1P/2K1R2R w - - 0 1 Analysis by Fritz 9: 1.Bd3 Raa7 2.Bg5 Rxe1+ 3.Rxe1 Re7 4.Rxe7 Qxe7 5.Nf3 = (0.04) Depth: 7/25 00:00:00 96kN 1.Bd3 Raa7 2.Nf5 Bxf5 3.Bxf5 Qa5 4.Be6+ Kh8 5.Bg5 Be5 6.Kb1 = (0.23) Depth: 8/26 00:00:00 296kN 1.Bd3 c4 2.Bxc4 Bg4 3.f4 Raa7 4.Bg5 Bh5 5.Qf5 = (0.21) Depth: 9/31 00:00:01 982kN 1.Bd3-- = (-0.07) Depth: 10/34 00:00:04 3938kN 1.Bd3 Raa7 2.Nf5 = (-0.07) Depth: 10/34 00:00:05 4319kN 1.Bc4! = (-0.06) Depth: 10/34 00:00:05 4828kN 1.Bc4! = (0.09) Depth: 10/34 00:00:06 5366kN 1.Bc4 Raa7 2.Bg5 Rxe1+ 3.Rxe1 Re7 4.Re3 Qe8 5.Nf5 Qxg6 = (0.23) Depth: 10/34 00:00:07 6374kN 1.Bc4 Raa7 2.Bd2 Rxe1+ 3.Rxe1 Nbd7 4.f4 Nf8 5.Qc2 Bb8 6.Qd3 Re7 = (0.09) Depth: 11/37 00:00:11 9596kN 1.Bc4 Raa7 2.Bd2 Rxe1+ 3.Rxe1 Nbd7 4.f4 Nf8 5.Qg5 N8h7 6.Qg6 Nf8 = (0.00) Depth: 12/37 00:00:20 18517kN 1.Bg5! = (0.01) Depth: 12/43 00:00:33 31260kN 1.Bg5! = (0.16) Depth: 12/43 00:00:33 31747kN 1.Bg5! ² (0.47) Depth: 12/43 00:00:35 33895kN 1.Bg5! ± (0.75) Depth: 13/42 00:01:02 60859kN 1.Bg5 Qf8 2.Bd3 c4 3.Bxc4 Raa7 4.f4 Rf7 5.Nf3 Bb4 6.Re2 Bc3 7.Ne5 Qa3+ 8.Kb1 ± (0.98) Depth: 14/42 00:01:40 101366kN 1.Bg5 Qf8 2.Bd3 c4 3.Bxf6 cxd3 4.Bxe7 Bxe7 5.d6 d2+ 6.Kxd2 Qxf2+ 7.Kc1 Bf8 8.Qe4 ± (1.08) Depth: 15/43 00:03:58 247983kN 1.Bg5! ± (1.36) Depth: 16/49 00:08:20 525978kN Regards Mike
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