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Weeks, M. “World Chess Championship 1975: Fischer forfeits to Karpov”. Laws for the 2007 – 2009 World Chess Championship Cycle Archived 10 December 2008 on the Wayback Machine, sections 4 and 正规打鱼平台能提现 5, FIDE online. Archived (PDF) from the unique on 30 Might 2008. Retrieved 6 June 2008. Based mostly on Landsberger, K. (2002). The …