[Bug] Division by zero in rscorecompare (gnuchess 6.2.9)

武汉理工大学-周豪 <[email protected]> Sun, 12 Apr 2026 18:18:26 +0800 (CST)
Newsgroups gmane.comp.gnu.chess.bugs
Message-ID <[email protected]>
------=_Part_31823_893320421.1775989106955
Content-Type: text/plain; charset=GBK
Content-Transfer-Encoding: base64
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==
------=_Part_31823_893320421.1775989106955
Content-Type: text/html; charset=GBK
Content-Transfer-Encoding: base64
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------=_Part_31823_893320421.1775989106955--