At the Combinatorial Game Theory Conference in Berkeley, California (July, 2000).
Most of the "Who's Who" in mathematical game theory were in attendence. Jack van Rijswijck and myself were somewhat in awe of the likes of John Conway, Elwyn Berlekamp, and Richard Guy, but we learned a ton!
Top: Julian West, David Wolfe, _?_
Standing: Martin Mueller, Mogens Larsen, Richard Nowakowski, _?_, Fabian Maeser, _?_, _?_, Sol Golomb (white beard), _?_, _?_, Noam Elkies, Takenobu Takizawa, Raymond Georg Snatzke, Jens Lieberum, Martin Demaine, _?_, Bill Spight, _?_, _?_, _?_, Alice Chan, _?_, Jonathan Schaeffer, Matt Ginsberg
Middle: David Eppstein (green t-shirt), Darse Billings, Eric Demaine, David Moews, Richard Guy
Front: Joe Buhler, David Eisenbud, John Conway, Jack van Rijswijck, Robert Mateescu, Vadim Anshelevich, Jurg Nievergelt, Elwyn Berlekamp, Matthew Cook, _?_, _?_, Len Haff, _?_
Not in photo: Avi Fraenkel, David Gale, Tom Ferguson, Bill Fraser, Cris Moore, Katherine Scott, Helena Verrill, Michael Lachmann, Wolfgang Slany, Howard Landman, Arthur Benjamin, Herb Doughty