Following six rounds of scintillating chess, the Sinquefield Cup is off to a brilliant start in St Louis, Missouri. The Cup features seven of the top ten players of the chess world. At the time this column was written US grandmaster Wesley So was leading the select group of ten accomplished grandmasters with two victories and four draws for a 4.0/6 score. He was closely followed by Vishy Anand of India (3.5/6), with five draws and a win and Veselin Topalov of Bulgaria with three draws and two