Author: Joachim Rang
Date: 06:56:10 07/12/04
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On July 10, 2004 at 18:24:26, Jon Dart wrote: >I have recently modified Arasan so that it can display 2nd and 3rd-best >moves for each test position. Using this I have gone through my >previously released test suite and some other tests I have collected >recently (mostly from Arasan games), and weeded out positions that >don't have unique good moves. I also removed some that were too easy. >The latest version is at http://www.arasanchess.org/arasan4.epd. >Any comments or corrections welcome. Last I ran this, Arasan was getting >about 95 out of 115 correct at 60 seconds/move. > Fruit X solves 88 ouf 115 at 60seconds/move on Athlon XP 1540 MHz. >The last test is interesting and wasn't solved at the 60 second mark: > >[D] 2kr3r/Rbpnq3/1p1pp3/2P3p1/3P4/2P1P1p1/Q2N1PP1/4KB2 w - - > >best move Rxb7. Phalanx played this in a test game (Arasan is getting a + score >over Phalanx overall in my tests now, but Phalanx is particularly good at >tactical shots and is still a tough opponent). > >--Jon Fruit X solves this on depth 8 after a few seconds and show a mate score on depth 9. Check extensions help here a lot. Without check extensions Fruit X switches to Rxb7 after 16 seconds but without a mate score. regards Joachim
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