Author: Frank Quisinsky
Date: 12:27:06 05/25/00
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Thanks Jon ! For round 8 in my FQ-2 tournament :-) I round 7 won Arasan 5.3 the match against InmiChess 3.03 with 6.5 : 3.5 ! Regards Frank On May 25, 2000 at 10:01:24, Jon Dart wrote: >Arasan 5.4 is available from the following location: >http://www.best.com/~jdart/arasan.htm. Source and executables >are available. > >This is the same version that has been playing on ICC recently >(I use a bigger opening book on ICC but the one that is released >with Arasan is a subset of it). > >Following are the changes made since version 5.3: > > 1. Fix crash in arasanx when time == 0. > 2. Time usage in "increment" games has been increased somewhat. > 3. Fix possible crash in scoring module. > 4. Fixed a few warnings/errors found by Bounds Checker. > 5. Some tweaks to pawn scoring. Doubled pawns that are > also isolated now count as 1 isolated pawn. There is > now a "space" term that encourages pawn advances and > penalizes cramped positions. > 6. Attack bitboards are now reduced in number, similar to > (but different in details from) the "compact" representation > used in Crafty. This results in faster speed generally. > 7. A fix was made to positional learning - the permanent hash > table was not being probed in all cases in which it should be. > 8. Fixed arasanx so it wouldn't try to make a move after a > repetition draw. Another bug was that Arasan would stop > searching after declining a draw offer. > 9. Null move usage is somewhat more restricted in endgames, > compared to 5.3. This allows solution of some problems such > as FINE174. > 10. Some fixes + additions to the opening book. > >--Jon
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