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Subject: SEE results

Author: Stuart Cracraft

Date: 06:35:19 08/10/04


Enclosed please find SEE results for SEE in quiescence
(SEE >= 0 to search a capture), SEE in all move sorting
(both quiescence and main search - move score is see() value
plus a centrality value plus history heuristic for captures,
for non-captures only centrality value plus history heuristic)
and lastly SEE for both of the above.

No SEE:

$ ./qaNbatch 30 300
HERALD ga nosee.log 30 300
**** 9.97/35.22 85% 255/300 7187.14 1756630528 5855435/24/244413 0/0/102630520/0
/0/0

SEE in Quiescence

HERALD ga -DSEEQUIESCE seequiesce.log 30 300
**** 10.13/31.83 85% 257/300 7147.18 1572046592 5240155/24/219953 0/0/51211448/0
/0/0

SEE in move sorting

HERALD ga -DSEESORT seesort.log 30 300
**** 9.53/35.23 82% 246/300 7267.69 1423642368 4745475/24/195887 0/0/85531800/0/
0/0

SEE in both quiescence and move sorting
HERALD ga -DSEEQUIESCE -DSEESORT seeboth.log 30 300
**** 9.81/32.28 84% 253/300 7207.02 1331241728 4437472/24/184715 0/0/43808052/0/
0/0

The bottom line result is that the average depth reached was 1/5 ply deeper
using just SEE in quiescence compared with no see and this was good enough for a
slightly higher (<1%) test score result.

Other uses of see in move sorting and for both did not do as well as for just
limiting the capture search.




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