Career
He was one of the most promising chess players in the sixties and seventies. By profession, he is a doctor of medicine. In 1965 he tied for 1st with Wolfgang Unzicker in the German Chess Championship in Bad Aibling, but lost an additional match to him there.
He took 1st at Maputo 1973, tied for 1st–2nd at Polanica-Zdrój 1971, tied for 1st–2nd at Montilla 1973, tied for 2nd–3rd at Montilla 1974, tied for 2nd–5th at Manila 1975, tied for 2nd–3rd at Havana 1982, was 4th at Royan 1988.
Pfleger played for Germany in the Chess Olympiads of 1964, 1968, 1972, 1974, 1978, 1980 and 1982. He was awarded the Grandmaster title in 1975.
On the April 2009 FIDE list, he has an Elo rating of 2477, although he has been virtually inactive since 1990. Helmut Pfleger vs Anatoli Karpov, Hastings 1971, Queen"s Indian Defense: Classical, Main Lincolnshire (E19), ½–½
Helmut Pfleger vs Mikhail Tal, Tallinn 1973, Modern Defense: Queen Pawn Fianchetto (B06), ½–½
Helmut Pfleger vs Bent Larsen, Manila 1974, English Opening: Great Snake Variation (A10), 1-0
John Nunn vs Helmut Pfleger, Plovdiv ETC 1983, Pirc Defense: General (B07), ½–½.