I can confirm this on Kubuntu Edgy. The package from Debian unstable works.
This is the console output when Knights crashes: knights: WARNING: audio::prepFile: Can not download tar:/usr/share/apps/knights/themes/KSDefault.tar.gz/matchover.wav QFile::open: No file name specified QFile::open: No file name specified QFile::open: No file name specified QFile::open: No file name specified QFile::open: No file name specified QFile::open: No file name specified QFile::open: No file name specified QFile::open: No file name specified QMetaObject::findSignal:io_engine: Conflict with io_base::sendCMD(const Command&) *** stack smashing detected ***: knights terminated KCrash: Application 'knights' crashing... -- crashes when trying to perform castle (king/rook exchange) https://launchpad.net/bugs/70424 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs