Tal or Karpov - Who Was More Precise?

In 1979 the super-tournament in Montreal was won by Tal and Karpov with the dominating score of 12 out of 18, full point and a half ahead of Portisch on 10.5 points.

It is expected that the tournament winners played the best chess and this was also the case in Montreal. However, with the modern chess engines freely available, there is always a temptatio…