Author: Anthony Cozzie
Date: 18:49:04 07/10/04
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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. > >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 1. Bf1-a6 g3xf2 2. Ke1-e2 f2-f1=Q 3. Nd2xf1 d6xc5 4. Ba6xb7 Kc8-b8 5. Qa2-a6 = (-1.41) Depth: 7/26 00:00:02.22 790kN 1. Ra7xb7 g3xf2 2. Ke1-d1 Nd7-b8 3. Qa2-a8 Kc8-d7 4. Rb7xc7 Kd7xc7 5. Qa8-a7 Kc7-c8 6. Qa7xe7 = (4.10) Depth: 7/26 00:00:02.52 984kN 1. Ra7xb7 g3xf2 2. Ke1-d1 Nd7-b8 3. Qa2-a8 Kc8-d7 4. Bf1-b5 Nb8-c6 5. Bb5xc6 Kd7xc6 6. Rb7xb6 Kc6-d7 7. Qa8-a4 Kd7-c8 8. Qa4-a6 Kc8-d7 9. Qa6-b5 Kd7-c8 10. Rb6-b8 = MAT10 Depth: 11/33 00:01:16.88 58547kN Zappa is not very good at getting deep PVs, so it takes some time for the mate score :( anthony
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