In May 2009 , Alexei Shirov achieved the greatest triumph of his career by placing 1st in the high Category 21 M-Tel Masters 2009 tournament , a double round tournament held in Sofia , Bulgaria . In May 2009 , Alexei Shirov achieved one of the greatest triumphs of his career by placing 1st in the Category 21 M-Tel Masters 2009 tournament , a double round tournament held in Sofia , Bulgaria .