From Longman Dictionary of Contemporary Englishgrand masterˌgrand ˈmaster noun [countable] DSOa chess player of a very high standard
Examples from the Corpus
grand master• Scargill dominated the hearings with his presence like some grand master of ceremonies.• The senior functionary on boards was Amir Aslan Afshar, the grand master of ceremonies.• But even with 50 years' worth of advances in movie technology, the young upstart can't beat the grand master.• He was now the grand master of ceremonies.• Perhaps the grand master of dysfunction was the late Francis Bacon, who made a considerable fortune out of it.• It was the grand master of Fuckspeak, the Human Piranha. 