Alexander Rueb (* December 27, 1882 in The Hague, † February 2, 1959 ) was a Dutch chess functionary, chess players and lovers of chess composition. He was the first president of the World Chess Federation FIDE.
Rueb was in the founding of FIDE in Paris in 1924 here. He was appointed the first president. He held until 1949 this office. Rueb also used, if known, for the first time in 1945, the current FIDE motto gene una sumus.
Rueb collected studies, mainly from the field of endgame studies. For documentation of these studies he developed his own system. His works he published in the 10- volume work De Schaakstudie, which appeared 1945-1955.
Its data collection on index cards has taken over the Dutch-Flemish Association for Friends of the endgame study ARVES (Alexander Rueb Vereniging voor Eindspel study).
From professional Rueb was a lawyer. From 1908 he worked at the Supreme Court of the Dutch Hoge Raad, later as a judge and diplomat.