Erich Zepler

Zepler studied physics in Berlin and Bonn before receiving his doctorate from the University of Würzburg.

After completing his doctoral studies Zepler undertook further research at Würzburg University,[2] before commencing work for Telefunken in Germany, eventually becoming head of the radio receiver laboratories.

Having fled to England to avoid Nazi persecution, he found work with the Marconi Company.

In 1980 a historic Telefunken T9W radio receiver, designed by Zepler in 1927-1928, and retained by the company in Germany as an example of pioneering work, was transferred to the School of Electronics and Computer Science at Southampton University as a heritage asset on permanent loan.

After 1...Qxf5+ 2.Ke7 Qb1 (on any other checks, the queen is simply captured) we have the original position again except that the king is no longer on the a2-g8 diagonal, making the mate possible: 3.Ra2+ Qxa2 4.Qb4#.