Author: Johannes Zwanzger
Date: 12:33:58 08/24/05
Hi, Jonny 2.82 (the version that played in Mainz and Reykjavik) ist available for download now. It should be about 60-80 points stronger then the last published version 2.75. The most important changes: - endgame knowledge for positions with few pawns added - some parameters changed, e.g. value for queen and bishop - kingsafety is weighted a little bit higher now - parameter considerPonderTime=1 in settings.ini for games with ponder on. Jonny then will use more time on average for its moves. - now PVS at the root-node - in case of a fail high aspiration-window is moved in .25-steps; larger size to below to avoid fail-lows - now only one parameter for maximum number of all extensions - improved search - speed increased, 10-25% depending on the CPU (mainly optimized for AMD64) - FRC-support implemented, which currently only works under Arena. The only change I used for the FRC-games in Mainz was to set the parameter trappedRook to zero, otherwise Jonny to often wanted to play a2-a4 or h2-h4 in the beginning. This version is (in the chess part) the same as the one tested in CEGT (e.g. http://www.husvankempen.de/nunn/). There are 5 versions downloadable, 4 for windows and 1 for linux: optimized for AMD64: http://cipinf2.cip.uni-bayreuth.de/~jonnycomp/jonny282_amd64.zip optimized for AMD_XP: http://cipinf2.cip.uni-bayreuth.de/~jonnycomp/jonny282_amdxp.zip optimized for Intel P4: http://cipinf2.cip.uni-bayreuth.de/~jonnycomp/jonny282_p4.zip for older CPUs: http://cipinf2.cip.uni-bayreuth.de/~jonnycomp/jonny282_oldercpu.zip linux: http://cipinf2.cip.uni-bayreuth.de/~jonnycomp/jonny282_lin.tar.gz Best Johannes
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