Aron Nimzovich
Aaron Nimzovich (1886-1935) was a Latvian-born Danish Grandmaster and a very influential chess writer. He is the author of "My System" and he is widely remembered by his "Immortal Zugzwang" famous victory over Friedrich Saemisch in 1923. Nimzovich played the following game during the Kecskemet Tournament of 1927 in Hungary against Karl Gilg. Black resigned after White's 21.Qxd4, with the double threat of winning Black's Rook at h8 and Qb6 Mate.