Young Kasparov vs. the Hungarians | Mastering the Middlegame - GM Ben Finegold
Grandmaster Ben Finegold celebrates players over 40 by touring two of Garry Kasparov's games from the legend's junior days. At 17, he met Istvan Csom; at 20, he played Lajos Portisch. Even with no apparent mistakes, Garry's opponents often lost.
2016.12.27
Garry Kasparov vs Lajos Portisch, Niksic (1983): E12 Queen's Indian, 4.Nc3
http://www.chessgames.com/perl/chessgame?gid=1070074
Garry Kasparov vs Istvan Csom, Baku (1980): E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)
http://www.chessgames.com/perl/chessgame?gid=1069830