The first period wasn't dominated by Esposito or Mahovlich, or by Yakushev or Kharlamov, but rather by two guys named Kompalla and Bata. They were the two referees from West Germany that were so brutally bad that it was charged that they were blatantly biased against the Canadian players. Canadian players were repeatedly sent to the penalty box for questionable and phantom penalties. Phantom offsides were being called as well. Somehow the Soviets were rarely being called for penalties, though. You can chalk it up to cultural differences in the differing styles of hockey. By the end of the game, the penalty minutes were 31 for Canada, just four for Russia.
http://www.1972summitseries.com/game6recap.html ---------------------------------------------- The Russians said that West German officials Josef Kompalla and Franz Baader, who both horrendously officiated Game 6, would have to officiate the final game. But Canada wanted no part of that. Those two, Kompalla in particular, proved to be brutally incompetent. The power-play advantages given to the Soviets so outrageously outnumbered the advantages given to Canada in Game 6 that one had to wonder if they were deliberately trying to throw the game.