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Article #5721Post information from Gnuchess 4.0
From: Chua Kong Sian
Date: Fri, 12 Jun 1992 07:47
Date: Fri, 12 Jun 1992 07:47
25 lines
1654 bytes
1654 bytes
Hi. After playing around more with Gnuchess 4.0, I've discovered a discrepancy(bug?) in the 'post' information. This can only be seen if you are running gnuchessr, where the post information does not overwrite the previous one. I noticed in many cases, the following. 5& -8 10 44306 c8g4 g1f3 c6d4 e2f2 g4f3 g2f3 5& -1 25 114646 e7b4 e1c1 c8g4 g1f3 b4c3 b2c3 g4f3 g2f3 5. -59 33 158853 e7b4 e1c1 c8g4 g1f3 b4c3 b2c3 g4f3 g2f3 The first column shows the ply that Gnuchess 4.0 is searching. The second column shows the score. The third is time taken and the fourth is the no. of positions seen. The rest are the best moves found at this ply. Notice that although the second line and the last line shows the same move order, their score is different! I strongly suspect that the bug is in the printing of the score, rather than a bug in the calculation of the score, but I haven't understood the source code enough to justify my guess. Of course Gnuchess 3.1 does not exhibit this discrepancy. PS. Is this considered a bug report? Chua.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10d71d,d5a26047ebfac90d,start X-Google-Attributes: gid10d71d,public X-Google-ArrivalTime: 1992-06-11 19:59:10 PST Newsgroups: gnu.chess Path: arc1-ca.pugleaf.net!sparky!uunet!darwin.sura.net!jvnc.net!nuscc!ccecks From: ccecks@nuscc.nus.sg (Chua Kong Sian) Subject: Post information from Gnuchess 4.0 Message-ID: <1992Jun12.074717.25969@nuscc.nus.sg> Sender: ccecks@nuscc.nus.sg (Chua Kong Sian (Mr)) Organization: National University of Singapore Date: Fri, 12 Jun 1992 07:47:17 GMT Lines: 25