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Subject: CCL results 19-06-98

Author: Ed Schröder

Date: 00:02:24 06/22/98


Hi All,

3 matches just finished.

Rebel 9.0 - Genius 5.0       6  2  2   7.0 - 3.0
Hiarcs 6.0 - Shredder 2.0    2  4  4   4.0 - 6.0
Nimzo 98 - Mchess 7.1        7  1  2   7.5 - 2.5

Ranking on Points
Nimzo 98          8    5    2    1    12   49.0 - 31.0  2500 2580
Rebel 9.0         8    5    1    2    11   44.0 - 36.0  2500 2536
Shredder 2.0      8    5    1    2    11   44.0 - 36.0  2500 2536
Genius 5.0        8    3    1    4     7   39.0 - 41.0  2500 2486
Hiarcs 6.0        8    2    2    4     6   38.0 - 42.0  2500 2479
Mchess 7.1        8    0    1    7     1   26.0 - 54.0  2500 2367

Ranking on ELO
Nimzo 98          8    5    2    1    12   49.0 - 31.0  2500 2580
Rebel 9.0         8    5    1    2    11   44.0 - 36.0  2500 2536
Shredder 2.0      8    5    1    2    11   44.0 - 36.0  2500 2536
Genius 5.0        8    3    1    4     7   39.0 - 41.0  2500 2486
Hiarcs 6.0        8    2    2    4     6   38.0 - 42.0  2500 2479
Mchess 7.1        8    0    1    7     1   26.0 - 54.0  2500 2367

Now in Progress
Genius 5.0 - Shredder 2.0
Rebel 9.0 - Nimzo 98
Mchess 7.1 - Hiarcs 6.0

More info and games at: http://www.rebel.nl/ccl/comp.htm

The new games are already downloadable.

Comments...
There are some doubts on the Mchess results. First in the very first match
between Genius and Mchess a line by Mchess is played that isn't active in
the Mchess book. The line is 1.d4 d5 2.c4 dxc4. I don't know how this
could have happened.

Next I found out that Mchess on CCL does not learn from its previous
games. From the 80 games Mchess played sofar on CCL it shows up that
there are 10 exact double games. With exact I mean 100% identical games
from move one to the last move. These 10 double games are not in favor
of Mchess as its score is ½ - 9½.

This case is under investigation now and Marty and I have some emails
going to find what is the reason and how things can be improved.

If there is un-justice done to Mchess all Mchess matches will be
replayed.

Mchess 7.1 on CCL runs as follows...
. Hash table 60 Mb
. Book learner enabled
. Position learner enabled
. Level is 40/120 20/60 20/60
. Table bases enabled (600 Mb on hard disk)

For the moment my (premature?) conclusion is that Mchess 7.1 doesn't
learn due to the 40/2:00 level settings and that I should use another
level instead but only Marty himself can tell. I will keep you posted.

- Ed Schroder -



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