George Duke wrote on Fri, Mar 15, 2013 11:18 PM UTC:
The dead middle in the Wikipedia list between 1858 Paul Morphy and 2013 Viswanathan
Anand is year 1935, from which to work up and down. Year 1935 has
Euwe-Alekhine for the world championship then,
http://www.chessgames.com/perl/chessgame?gid=1013180. Where does Black go
wrong?