🚀 go-pugleaf

History:
In the version of gnuchess 3.1 that won the uniform platform
tournament the repetition code does not recognize that
pieces are different.

Present condition:
In the last 4.0 pl 73 version there is another bug in repetition.
The loop examine one position too far back.
Others have noted that there is something strange in repetition.
The strangeness is that the loop will only be entered when there
is at least 5 iterations, even though a repetition could occur
after 4 half moves.

Possible consequences:
For 5 iterations and less the problem is only some lost cycles but
for even greater (pun intended) values it might cause the program
to miscalculate.

Easy fix:
Use ">" instead of ">=" in the repetition function in file search.c.

I have mailed mwm about this, but as there has been no new version
for a while I thought I'd post too.
-- 
Urban Koistinen - md85-epi@nada.kth.se
Stop software patents, interface copyrights:  contact lpf@uunet.uu.net