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Subject: Re: baiting the machine

Author: John Merlino

Date: 15:40:52 09/24/03

Go up one level in this thread


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



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