Congratulations! Rainer Knaak celebrates his 70th birthday

Rainer Knaak was born on 16 March 1953 in Pasewalk, Mecklenburg-Vorpommern. In 1974, at the age of 21, Knaak became the then youngest grandmaster in the world. The mathematician is a 5-time champion of the German Democratic Republic, and always caused a stir with his optimistic and elegant attacking style. Knaak was also successful as an author. He published numerous books and began working for ChessBase in 1994. He was editor-in-chief of ChessBase Magazine and published a number of popular ChessBase DVDs.