Toga is the strongest free uci engine with
Rybka 1.0 Beta
Legal details -------------
Toga II 1.3x4 (beta version) based on Fruit 2.1 by
This program is free software; you can redistribute
it and/or modify it under the terms of the GNU General
Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General
Public License along with this program; if not, write to
the Free Software Foundation, Inc., 59 Temple Place,
Suite 330, Boston, MA 02111-1307 USA
See the file "copying.txt" for details.
If you are the author of a commercial chess engine,
or, as "beta tester", related to an author of a
commercial chess engine, and want to use Toga based on
Fruit in automated or non-automated tests in order to
improve your own engine, then it would be very nice if
you send me one copy of your engine (current release)
for my own private testing purposes.
Toga II 1.3x4 based on Fruit is a UCI-only chess
engine. This distribution comes up only with Windows
executable and platform-independent source code.
Official distribution ---------------------
You can download the GNU GPL Package (incl. sources)
with Toga II based on Fruit at: http://www.superchessengine.com/
or send an email to togaII@gmx.de
Toga II 1.3x4 based on Fruit 2.1
Following changes and extensions made:
- improved history pruning - improved futility
pruning - improved lazy evaluation - new evaluation
features (outpost knight etc.) - MultiPV Mode
New in 1.2
- more pruning - more extensions - new settings by
New in 1.2.1
- new settings - some minor bugfixes
new in 1.3x4
- changes in eval - changes in search - Endgame
bitbases by Daniel Shawul (Scorpio)
A very big thank to Daniel for sharing his great
endgame bitbases and his dll.
EGBBs ----- Toga uses the Scorpio endgame bitbases
upto 5 pieces.
Installation ------------ First You have to download
the 5men bitbases from Leo Dijksman's WBEC site http://www.wbec-ridderkerk.nl
. The egbbs are 340mb in size. Then put them anywhere in
your computer. The default path is c:\egbb\ but you can
change this in the uci options. The egbbdll.dll must be
in the same folder as the bitbase files.
Thanks Fabien Letouzey for the great source code of
the program Fruit 2.1.
Special thanks to Dieter Eberle, Karl-Heinz Söntges,
Shaun Brewer for testing Beta Versions. A big thank to
Dieter Eberle for his setting. Orlando Mouchel for
bugfixes and new ideas. Raimund Heid for his new ideas.
Wilhelm Hudetz for the Logo.
Without their help i wouldn´t be able to increase the
playing strenght, compared to Fruit 2.1, by about 100