link to OliThink's page on Chess-Progamming-Wiki
Special thanks to Dann Corbit for his support and contribution!

link to OliThink's page on GitHub

OliThink 5.8.9

Completely rewrite of OliThink with a very fast move generator (based on OliPerft). Engine runs without any chess information. No pawnstructure, no tables etc.
ELO about 2800. 128 MB fix Hashsize. New feature: Command random.

5.8.9:     Windows x64         Mac OSX x64         Linux x64         Source Code


Translation of OliThink 5 C to java. 5.8.9 is available with an own GUI as standalone application.

5.8.9:     Java engine executable (jar)         Java Source Code         with GUI


Play OliThink5 Java online (Demo)
 
Start with "java -jar OliThinkGUI.jar" or just doubleclick if your OS is correctly configured.

OliThink Java with GUI executable (jar) (63kb) Vers. 5.8.9


OliThink 5.3.3


Windows x64         Mac OSX x64         Linux x64         Source Code         Java Source


Please note that versions 5.4.0 to 5.4.3 and versions before 5.3.3 contain a destabilizing bug.
Check this branch for the fix of either version.

OliThink 4 or before:

(4.1.3 has been fixed for 64bit compile, 3.0.7 for a 3-fold repetition bug, 2.2.3 for a protocol bug)

4.1.3:     Mac OSX x64       Linux x64       Windows x64       Source Code      

4.1.2:     Java Binary (jar)       Java Source Code


3.0.7:     Mac OSX x64       Linux x64       Windows x64       Source Code


2.2.3:     Mac OSX x64       Linux x64       Windows x64       Source Code      


New Move Generator OliPerft (Pre OliThink 5)

New Features:

1.0.7:     Source Code       Mac OSX x64       Linux x64       Windows x64      



Usage: oliperft <depth> <fen>
#oliperft 6 "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 1"

for "divide" just add "-" before the <depth>
#oliperft -6 "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 1"

Important Links for OliThink:

Free graphical Interface (Optional)

cygwin1.dll (Optional)