By D.B. Pritchard
By Fred Reinfeld
By Federation British Chess
By Daniel King
By John Littlewood, Edward Penn
By Knight, Matt
By R.L. Bowley
By Bobby Fischer, etc.
By Jose Raul Capablanca
By Andrew Kinsman
By Glenn Flear
By Chris Ward
By Jennifer Shahade
By Graham Burgess
By Gerald Abrahams
By Reuben, Stewart
By Graham Burgess, John Nunn, John Emms