George Duke wrote on Thu, Jul 7, 2011 04:56 PM UTC:
Schatz quoted from 8 years ago is playing the same Duel Chess, not very well
known, at Game Courier right now! Schatz's profound learning curve comment at Attendance Chess from 6 years ago happens to be his last one made here identifiable. On Capa versus Lasker's switching Bishop
and Knight, Nicholls asks of, besides Reti 'Modern Ideas in Chess', the
other likely source would have been the section in 'ECV'(1994) on
Capablanca Chess. Please provide any more information who actually chiefly re-introduced it in modern times since there is a lag of up to 100 years after A. Alexandre in 1820s.