Star of Poland (SP)
Peter Woitke and Chrilly Donninger
version 0.26 (Aug. 2007) for 9x9 / will be replaced by newest version 0.40 (Nov. 2008) soon. Suzie often plays on the CGoS mostly as a Linux version: v0.40L recently has achieved Elo 1756 there for 19x19 Go and Elo 2127 for 9x9 Go.
Suzie is a chess program that plays the game of Go. It is based on
alpha-beta search with iterative deepening, ply extensions, quiescence
search, null-move pruning, null-window pruning and multi-cut pruning.
Suzie uses a MoyoGo-like shape generator to hardprune away "useless"
moves, and the search becomes purely "local" beyond a certain depth.
The position evaluation function uses tree-search for tactical
stability and to resolve small semiai. Suzie reaches about 3000-7000
positions evaluations/sec on 9x9, and 1000-3000 on 19x19. With the
aggressive hard- and softpruning techniques applied, Suzie v0.40 reaches a
search depth (without extensions) of 6-8 on 9x9 (8min) and 4-6 on 19x19
SUZIE is not yet available (- originally the Chess software house ChessBase
in Hamburg, Germany, planned to release it in 2007 and started to develop a user interface like the one for their chess program FRITZ - in that form SUZIE v0.23b was presented to public on the European Go Congress 2007 in Villach, Austria => Photos
)The Many Faces of Go (MF)