Author: Claudio Della Corte
Date: 17:32:36 01/20/02
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On January 20, 2002 at 20:08:24, Jon Dart wrote: > >CCT-4 notes > >Here are some notes re Arasan's participation in CCT4. > >I had a worry a couple of weeks ago when my wireless network quit >working. I have a couple of Linux boxes and a network hub in the >basement. But the fast machine, the Athlon, is upstairs on a wireless >link. It broke, and it would be a pain to move the Athlon downstairs >onto the wired net, so I was afraid I'd have to use a Pentium III/733 >for the tournament. But I was able to get a replacement wireless card >in time and all was well, hardware-wise, anyway. > >I am still tuning Arasan. In the last year or so I have made king >safety changes, extension changes, bug fixes, and built a new opening >book. Oh yeah, and ported it to Linux. None of this is publically >released yet. Soon, I hope. > >Arasan was paired against Ferret (!) in the first round. Bruce reminded >me that Arasan has played several games against Ferret on ICC under >the handle "Mink", but Mink was on a lot slower hardware. Ferret had >a dual Athlon setup for the tournament. Arasan played a somewhat >passive English Opening setup. Not bad, but not very active. Ferret >crushed it. > >Next round I had PolarChess. Arasan got an early advantage and won >easily. > >Round 3 Arasan was matched with monsoon. Arasan has played monsoon >on ICC. It is a strong engine. I am impressed, in fact, with how >many good amateur engines there are. Chester, Insomniac, monsoon, >amyan, tao, to name just a few. > >monsoon played the Benoni, which I think is just bad for Black. But >Arasan chose the Four Pawns defense (A68), which is far from the >best system. 7. Nf3 is better than f4. I think White can also play g3. >Arasan played into the f4 line because there were some draws and >wins with it from the White side in its book database. But I think >15 .. Nb6 may bust this line. After that, Arasan played one move out >of book (16. Qb3) and the next move was failing low. It doubled the >search time but still had a bad position, and it never really >recovered. Which is not to deny that monsoon played well. But I took >the f4 line out of the book since this game. So far it's ok, while for today results I guess you are a bit tired, or drunk :) Arasan lost to Averno on round 4, beat Esc on round 5 and finally drew Armageddon on round 6. Match against Tao maybe is a friendly match? I know all this because Arasan was the defeat of the day of my program Esc... :) Ok my comment on round 5: Arasan-Esc I implemented the same book move selection you are talking about, based on expected results (gives exponential preference) and frequency... but it didn't work in the meran game this time... Esc could have resigned already at move 20, having not had the chance to castle and with the much more active pieces of Arasan. I manually stopped the agony at about move 30-31, because Esc would have liked to go on for some more moves with one bishop for a queen. Thanks for the other games comments anyway, Regards, Claudio
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