A little post-mortem analysis.
The “Battle of the Giants” between tenth World Champion Boris Spassky, 72, and multiple World Championship challenger Viktor Korchnoi, 78 began with the latter pressing. But in the second half of the match it was Spassky who called the shots.
You can find the game scores here: All eight games in PGN format
You can read my previous comments on the match here:
A chess match only an old fart could love