Four men were crossing the center of the hall, which was clearing, toward the tables at the other end. Doubtless they just happened to be going two by two in close formation, but it gave Sandra the feeling of a phalanx. "The first two are Lysmov and Votbinnik," Doc told her. "It isn't often that you see the current champion of the world--Votbinnik--and an ex-champion arm in arm. There are two other persons in the tournament who have held that honor--Jal and Vanderhoef the director, way back." "Will whoever wins this tournament become champion?" "Oh no. That's decided by two-player matches--a very long business--after elimination tournaments between leading contenders. This tournament is a round robin: each player plays one game with every other player. That means nine rounds." "Anyway there _are_ an awful lot of Russians in the tournament," Sandra said, consulting her program. "Four out of ten have USSR after them. And Bela Grabo, Hungary--that's a satellite. And Sherevsky and Krakatower are Russian-sounding names." "The proportion of Soviet to American entries in the tournament represents pretty fairly the general difference in playing strength between the two countries," Doc said judiciously. "Chess mastery moves from land to land with the years. Way back it was the Moslems and the Hindus and Persians. Then Italy and Spain. A little over a hundred years ago it was France and England. Then Germany, Austria and the New World. Now it's Russia--including of course the Russians who have run away from Russia. But don't think there aren't a lot of good Anglo-Saxon types who are masters of the first water. In fact, there are a lot of them here around us, though perhaps you don't think so. It's just that if you play a lot of chess you get to looking Russian. Once it probably made you look Italian. Do you see that short bald-headed man?" "You mean the one facing the Machine and talking to Jandorf?" "Yes. Now that's one with a lot of human interest. Moses Sherevsky. Been champion of the United States many times. A very strict Orthodox Jew. Can't play chess on Fridays or on Saturdays before sundown." He chuckled. "Why, there's even a story going around that one rabbi told Sherevsky it would be unlawful for him to play against the Machine because it is technically a _golem_--the clay Frankenstein's monster of Hebrew legend." Sandra asked, "What about Grabo and Krakatower?" * * * * *