Author: Amir Ban
Date: 13:49:00 07/18/00
Go up one level in this thread
On July 18, 2000 at 15:31:17, Chessfun wrote: >On July 18, 2000 at 13:04:42, blass uri wrote: > >>On July 18, 2000 at 12:52:39, Chessfun wrote: >> >>>On July 18, 2000 at 09:44:58, blass uri wrote: >>> >>>>[D]rnbqk2r/1p1n1pbp/p1p1p1p1/3pP3/3P1B2/2N2N1P/PPPQ1PP1/R3KB1R w KQkq - 0 1 >>>> >>>>In this position Deep Junior played 9.Bg5. >>>> >>>>I test my Junior5.9 on PIII450 at time control of 9 hours/moves 9-11 >>>>Junior5.9 liked Bg5 at depth 18 but changed its mind to Bh6 at depth 20. >>>> >>>>The score of 9.Bh6 at depth 20 is +0.62 >>>>Junior5.9 found this move after 51 minutes and 21 seconds after searchng 936542 >>>>knodes. >>>> >>>>Can Junior6a find the same move at iteration 20? >>>>Did Junior miss this move because of the fact that the hardware was not fast >>>>enough or because of bad time management? >>>> >>>>Uri >>> >>>Hi Uri !! >>> >>>I think you will find J6a will stick with 9. Bh6. >>>I will leave it running as I have to go out for a bit. >>> >>>rnbqk2r/1p1n1pbp/p1p1p1p1/3pP3/3P1B2/2N2N1P/PPPQ1PP1/R3KB1R w KQkq - 0 1 >>> >>>Analysis by Junior 6.1: >>> >>>1.h4 c5 >>> = (0.14) Depth: 3 00:00:00 >>>1.Bh6 0-0 2.Qf4 Bxh6 3.Qxh6 >>> ² (0.50) Depth: 6 00:00:00 4kN >>>1.Bh6 0-0 2.Qf4 Bxh6 3.Qxh6 >>> ² (0.50) Depth: 6 00:00:00 4kN >>>1.Bh6 0-0 2.Qf4 Bxh6 3.Qxh6 >>> ² (0.50) Depth: 6 00:00:00 4kN >>>1.Bh6 0-0 2.Qf4 Bxh6 3.Qxh6 >>> ² (0.50) Depth: 6 00:00:00 4kN >>>1.Bh6 0-0 2.Qf4 Bxh6 3.Qxh6 >>> ² (0.50) Depth: 6 00:00:00 4kN >>>1.Bh6 0-0 2.Qf4 Bxh6 3.Qxh6 >>> ² (0.50) Depth: 6 00:00:00 4kN >>>1.Bh6 0-0 2.Qf4 Qb6 3.0-0-0 c5 4.dxc5 >>> ² (0.49) Depth: 9 00:00:00 36kN >>>1.Bh6 0-0 2.Qf4 f6 3.Bxg7 Kxg7 4.Qg4 fxe5 5.dxe5 Rf5 >>> ² (0.41) Depth: 12 00:00:05 750kN >>>1.Bh6 0-0 2.Qe3 c5 3.Bxg7 Kxg7 4.dxc5 Qa5 >>> ² (0.45) Depth: 14 00:00:17 4206kN >>>1.Bh6 0-0 2.h4 c5 3.Bxg7 Kxg7 4.h5 Rh8 5.dxc5 Nxc5 6.Ng5 >>> ² (0.50) Depth: 16 00:01:18 20095kN >>> >>>(Bird, Scarb 18.07.2000) >>> >>>Thanks. >> >>We will see. >> >>My Junior5.9 also liked Bh6 only to change its mind later to Bg5 and later again >>to Bh6. >> >>I think it got only depthes 3,6,9,12,15,18,20 and I am not sure about the depth >>that it changed its mind to Bg5. >> >>Uri > >You are right changed to Bg5 then back to Bh6. > >Bird,S - Junior 6.1 >rnbqk2r/1p1n1pbp/p1p1p1p1/3pP3/3P1B2/2N2N1P/PPPQ1PP1/R3KB1R w KQkq - 0 1 > >Analysis by Junior 6.1: >1.Bh6 0-0 2.Qf4 f6 3.Bxg7 Kxg7 4.Qg4 fxe5 5.dxe5 Rf5 > ² (0.41) Depth: 12 00:00:05 750kN >1.Bh6 0-0 2.Qe3 c5 3.Bxg7 Kxg7 4.dxc5 Qa5 > ² (0.45) Depth: 14 00:00:17 4206kN >1.Bh6 0-0 2.h4 c5 3.Bxg7 Kxg7 4.h5 Rh8 5.dxc5 Nxc5 6.Ng5 > ² (0.50) Depth: 16 00:01:18 20095kN >1.Bh6 0-0 2.h4 c5 3.Bxg7 Kxg7 4.h5 Rh8 5.hxg6 hxg6 6.Rxh8 Qxh8 7.Ng5 > ² (0.50) Depth: 17 00:04:29 65980kN >1.Bh6 0-0 2.0-0-0 c5 3.dxc5 Nc6 4.Qf4 Qa5 > ² (0.32) Depth: 18 00:31:27 221218kN >1.Bg5 Qc7 2.Bh6 0-0 3.h4 c5 4.Bxg7 Kxg7 5.h5 Rh8 6.Qf4 cxd4 7.Qxd4 > ² (0.33) Depth: 18 00:38:14 326132kN >1.Bg5 Qb6 2.Na4 Qc7 3.Bh6 0-0 4.Qf4 c5 5.Bxg7 Kxg7 6.Nxc5 > ² (0.28) Depth: 19 01:05:15 760545kN >1.Bh6 0-0 2.0-0-0 c5 3.dxc5 Nc6 4.Qf4 Qa5 5.Bxg7 Kxg7 6.Re1 Qxc5 7.Ng5 > ² (0.31) Depth: 19 01:11:26 858665kN >1.Bh6 Kf8 2.0-0-0 c5 3.dxc5 Nc6 4.Re1 Qa5 5.Qf4 Bxh6 6.Qxh6+ Kg8 7.Ng5 Ndxe5 > ² (0.60) Depth: 20 02:39:00 2114947kN > >(Bird, Scarb 18.07.2000) > >Thanks. Bg5 is correct IMO, and an improvement on Bh6. The problem is with the next move 0-0-0, which allows h6. White should play 10. Na4 Qc7 11. Bh6 10. 0-0-0 was played immediately as Qb6 was expected. I didn't check why it was preferred over Na4. The reason why 9. Bg5 works is this: After 9. Bh6, 9... Bxh6 is forced (9... 0-0? 10. h4 is winning) 10. Qxh6 Qe7 11. h4 Qf8 black manages to hang on. With the black queen on c7 black doesn't have this resource. Amir
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.