Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Deep Junior's Debut

Author: Vincent Diepeveen

Date: 07:59:03 12/28/99

Go up one level in this thread


On December 28, 1999 at 10:20:42, Djordje Vidanovic wrote:

>I got Deep Junior 6 several days ago and decided to find out more about it by
>staging a tournament with my currently strongest engines under the Deep Junior
>GUI.  I decided on a round robin with programs playing 4 games against each
>other. Time controls were G/25 (game in 25 minutes, sudden death), which is the
>level most commonly used in rapid chess and the one quite likely to be used by
>computer chess fans when playing their programs.
>
>The roster included two SMP programs -- Deep Junior and Crafty 16.15, and two
>other super strong programs, Fritz (test version 6.66) and Hiarcs 7.32.  The
>venue was my dualboard PII/400 machine. Each program used 32MB hash, and the
>Nimzo 7.32 opening book.  Pondering and learning were off.

Are you telling here that you are running 2 programs at 2 cpu's,
so junior at 2 processors and crafty at 2 processors sometimes have
a big problem that another program is eating up cpu time, thereby
locking the whole process?

Or did you use the right method involving 2 computers:
  - dual PII400
  - single cpu computer

How did you do the test?

If you run a parallel program at 2 cpu's
against another program at the same cpu's, then
the dual version of that program is having major problems,
as it cannot search on as a processor sometimes gets blocked by another
process. Thereby reducing the nodes a second and plydepths a program
running parallel gets.

>Fritz 6.66 played enterprising and, at times, daring chess.  In my previous
>testing, this particular test version that I dubbed Fritz El Diablo had shown to
>be very successful, often leaving its opponents far behind, and achieving
>incredible winning margins. I believe that ChessBase should release this new
>version as soon as possible, thus contending for No. 1 in SSDF.  One can get a
>better idea about Fritz 6.66's strength by noting that in this short 12-rounder
>Hiarcs 7.32, the super strong, aggressive and positionally sound program by Mark
>Uniacke, trailed Fritz by 3.5 points.  Close behind was Deep Junior 6, which
>played good positional and tactical chess, with an excellent evaluation of
>middlegame positions leading to ensuing endgames.  Deep Junior 6 reached up to 1
>million nodes in some of the endgames, averaging 650-700K in the middlegame.  It
>plays rational, forceful chess that can be extremely dangerous for human
>players.  My early estimate is that Deep Junior 6 is a cut above Junior 5 in
>tactics, and only slightly positionally better, probably garnering quite a few
>Elo points over its predecessor.
>
>Crafty 16.15 is unfortunately the only SMP version of this strong program
>capable of running under the Junior interface.  It battled its opponents with
>lots of perseverence, managing to squeeze out two draws from each, unfortunately
>scoring no win. Some of the games it should have won, but the commercials are
>obviously stronger and managed to trick Crafty into drawing the games.
>
>Fritz lost only one game: to Deep Junior, and Junior lost two, only to Fritz.
>This fact alone indicates that the spread between Fritz 6.66 and Deep Junior on
>one hand and other strong programs on the other is tangible.
>
>The cross-table:
>	                    1    2    3    4
>1   Fritz 6 Test 66  **** 10½1 ½11½ 11½½   8.5/12
>2   Deep Junior 6.0  01½0 **** 1½½1 1½½1   7.5/12
>3   Hiarcs 7.32      ½00½ 0½½0 **** ½11½   5.0/12
>4   Crafty 16.15 P4  00½½ 0½½0 ½00½ ****   3.0/12
>
>
>*** Djordje



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.