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Subject: Re: baiting the machine

Author: Dave Gomboc

Date: 22:14:13 09/28/03

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On September 24, 2003 at 18:40:52, John Merlino wrote:

>On September 24, 2003 at 12:24:30, Dave Gomboc wrote:
>
>>I just installed Deep Junior 6 on a new machine that supports hyperthreading.  I
>>think it might be trying to run on two processors instead of one, and I'm not
>>sure if this will decrease its performance or not.  Does anyone know?  In the
>>commented position, when I set it on Infinite Analysis I get about 1.8 million
>>nodes per second.
>>
>>I don't claim any particular soundness to this game -- I don't even claim that I
>>came up with all the moves!  (I had the analysis feature visible.)  I'm posting
>>it because it is an example of a program taking some poisoned material.  Of
>>course, the program will reject the material when it has more time to think.
>>
>>Me - Deep Junior 6.0
>>Level=Blitz:5', 24.09.2003
>>
>> 63MB, jbook.ctg. CYBORG
>>1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bh4 dxc4 7.e4 g5 8.Bg3 b5 9.Be2
>>Nbd7 10.e5 Nd5 11.h4 g4 12.Nd2 h5
>>13.Nde4 Be7  -0.52/14  11
>>14.0-0 0-0  -0.56/14  8
>>15.Qd2 Kg7  -0.23/16  0
>>16.Ng5 Bxg5  -0.18/13  4
>>17.hxg5 a5  -0.13/14  5
>>18.Ne4 a4  -0.18/15  8
>>19.f3 a3  -0.50/14  8
>>20.fxg4 axb2  -0.42/14  14
>>21.Qxb2 hxg4  -0.38/15  17
>>
>>Here I decided that the computer would be unable to resist the bait.  Indeed, I
>>even got that "I think that's a mistake" popup, which I dismissed with relish.
>>;-)
>>
>>22.Rf6 N7xf6  -1.24/12  6
>>23.gxf6+ Kh7  0.41/14  7
>>24.Kf2 Ne3  1.16/14  0
>>25.Rh1+ Kg8  3.71/14  12
>>26.Nd6 Qxd6  8.91/14  55
>>27.exd6 e5  9.21/15  2
>>28.dxe5 Bf5  11.19/14  4
>>29.Qc1 1-0
>
>Here's the position:
>
>[D]r1bq1r2/3n1pk1/2p1pR2/1p1nP1P1/2pPN1p1/6B1/PQ2B1P1/R5K1 b - - 0 22
>
>It takes Chessmaster 9000 0:03 to switch to Qb6 (this is on a P3-750):
>
>Time	Depth	Score	Positions	Moves
>0:00	1/3	-1.29	3770		22...N7xf6 23.gxf6+ Kg8 24.Bxg4 Qa5
>0:00	1/4	-0.70	9239		22...N7xf6 23.gxf6+ Kh7 24.Bxg4
>					Qa5 25.Bh5
>0:00	1/5	-0.85	26940		22...N7xf6 23.gxf6+ Kh7 24.Bxg4
>					Qa5 25.a4 Kg8
>0:00	1/6	-0.71	54388		22...N7xf6 23.gxf6+ Kh7 24.Qd2
>					Rg8 25.Ng5+ Kg6 26.Bxg4 Qa5
>0:01	1/7	-0.18	136260		22...N7xf6 23.gxf6+ Kh7 24.Qd2
>					Rg8 25.Ng5+ Kg6 26.Bh4 Nb4 27.Bxg4
>0:03	1/7	-0.65	288217		22...Qb6 23.Qd2 Ra3 24.Rff1 c3
>					25.Qd3 Ra4
>0:11	1/8	-0.51	876122		22...Qb6 23.Qd2 Ra3 24.Bf2 Qa5
>					25.Qxa5 Rxa5 26.Rh6 c5 27.Bxg4
>0:37	1/9	-0.51	2947806		22...Qb6 23.Qd2 Ra3 24.Bf2 Qa5
>					25.Qxa5 Rxa5 26.Rh6 c5 27.Bxg4
>1:57	1/10	-0.09	9364164		22...Qb6 23.Bf2 Qa7 24.Rh6 c3 25.Nf6
>					Rh8 26.Qc1 g3 27.Nh5+ Kg8 28.Nxg3
>
>jm

As I just posted in reply to Uri, ...Qb6 doesn't necessarily solve Black's
problems.

Dave



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