Author: Mike Adams
Date: 21:38:37 09/20/00
I want to thank those who offered suggestions for null move in Pulsar, in
perliminary tests it seems to be worth 50 points to do depth-3 over depth-2.
Also it no longer does null move while in check.
Pulsar manages to win many games by blitzing its opponent with tactics but
its often comeing from behind in very unsound positions it gets itself into. It
will let its queen wander to other side of board while its king is under viscous
attack. It has been known to place its pieces in very awkward positions with
little room for movement. The evaluate basicly only looks a things like 64
grid poitions bonuses for knights, bishops, pawns. pawn structure such as passed
isolated and double pawns, and rooks on 7th rank and open files. It also has a
little king saftey in that it tries to preserve the pawns around its castled
kings and there is a 25 point bonus for castling. I preety much modled the
evaluate after the simple chess program and have not gone beyond that. Its
playing at 2100 blitz at moment on icc but can still lose to much lower rated
opponents who maybe allign all pieces on king and make a sacraftice at critical
move. Are there some things I can do without getting overly complicated at least
not at first that would improve it postionally. For example is there any way i
can use the moves it generates in the evaluate function to look for things like
piece mobility or pieces threatening the king? I have added a check extension
which seems to be helping king saftey but it still kicks in often late. Any
suggestions would be appreciated.
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