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Subject: Does anyone know why Gadget wasn't crushed in every game?

Author: Hans van der Zijden

Date: 14:15:35 11/04/01


I entered the Open Dutch tournament without any hope of scoring a point. I would
have been satisfied with one not too bad game. The reason for this is that I
just started programming on Gadget the last 5 months I think. When Gadget
reached a depth of 6 ply in about 90 seconds average, I started thinking about
implementing quiescence search. This proved to be too difficult for different
reasons (one being that I am very lazy). Eventually I had to decide to play with
the old version. Apart from not having QS I also lacked hashtables, permanent
brain, nullmove, some necesary chessknowledge and who knows what more. I
practised against the Kasparov GK 2000 (about 1850 elo). Gadget on 90 minutes
for the whole game and the GK 2000 on 1 sec/move. Gadget lost 3½-½. And now I
had to play 2300+ programs calculating double the number of plies Gadget
reached. But it only got severely beaten by Fritz (mate in 23) and Kallisto II
(mate in 31). Most other games it was only slowly smothered. Against Diep Gadget
last a pawn on move 20 but then it took Diep 24 more moves before he won the
second pawn. Against Ant it was a clear draw after 74 moves but then Gadget took
a poisened pawn and lost after move 93. Gadget even won a game against another
debutant. What happened? Am I dreaming?



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