SOS
SOS for Arena by Rudolf Huber, Germany
Hans Secelle l. and Albrecht Heeffer m.
(main programmer of chess program Ant is Tom Vijlbrief, Netherland);
? r., Rudolf Huber f. (chess program SOS)
(main programmer of chess program Ant is Tom Vijlbrief, Netherland);
? r., Rudolf Huber f. (chess program SOS)
Photography by Theo van der Storm, 
CSVN Netheland.
Chess program Ant and other programs can be found on Leo Dijksman
CSVN Netheland.Chess program Ant and other programs can be found on
Leo Dijksman
A little bit about SOS:
Download on Arena webpage!
Download on Arena webpage!
"SOS is an amateur program which was started in 1993
and has since then competed in a number of tournaments. The newest
version runs on multiprocessor systems with a parallelized version of
mtd(f) as its minimax search algorithm. SOS used to be a
relativley fast searcher and relied on outsearching the opponent. This
has changed now and more knowledge and special cases have been
implemented which slow it down. Little effort is spent on the opening
book. It plays a very broad range of openings. However it learns to
avoid unsuccessful lines and tries not to repeat lost games. It uses
publicly available endgame databases."
Written by Rudolf Huber!
