Even Robert Fischer lost... sometimes

Recently, in a topic about Robert Fischer, I mentioned that et years of his greatest succeses he lost a game against Vlatko Kovacevic, a croatian master, who even hat not an international title at the moment. It was at the tounrament in Zagreb, Croatia, 1970. A game can be interesting, so I post it here, with translations of some Kovacevic's coments. Excuse for a bd english, but moves are the most important! He described a way how he prepared an improvement in opening - it's how grandmasters work! Kovacevic is born 1942, and he is still an active player. with 2499 rating points.

At the highest levels of chess, there is a sliver of difference between players.  He became a GM in 1976.

Vladimir Kovacevic

 You also must have in mind that it was much more dificulgt to become a GM or IM at that time. There were about 100 GMs in the world, today is more then 1000.