George Duke wrote on Mon, Mar 7, 2011 10:38 PM UTC:
Anand at number 1 again age 41 is second example since 2000 of that age
group holding #1, Kasparov born 1963 at the top all of 2003 til
his retirement and somewhat after. Http://www.chessbase.com/newsdetail.asp?newsid=7053. When was the last time one or two gms age 40+ dominated ranked #1 most of a decade? You may have to go back to Lasker(1868-1941) for that, partly since the above question is a little sketchy. Still it is unusual, not occurring after Fischer-Spassky Reykjavik 1972 and probably not after Lasker early 20th century.
