I’ve always credited Andy Tejler for my introduction to the Blackmar-Diemer Gambit, but never blamed him for my addiction to it. We were correspondence friends for a third of a century. In his later years he lived in northern Virginia and played chess at the Arlington Senior Citizens Club. This is a photo taken there in April 1994.
Andy enjoyed gambits. The BDG, of course, but just about any gambit. Here’s an example, an Albin Countergambit, played a month or so after the photo was taken. It’s one of the last games he sent me.