World champion Viswanathan Anand has suffered a shock defeat at the hands of Englishman Michael Adams in the first round of Alekhine Memorial Chess Tournament. At the Louvre in Paris yesterday, it was a day of big upsets as Chinese champion Ding Liren caused another big flutter crushing world number three Levon Aronian of Armenia.The 10-player round-robin super tournament, however, saw Vladimir Kramnik of Russia beating compatriot Nikita Vituigov while the other two games ended in draws.Anand's 2012 World championship challenger Boris Gelfand of Israel played exciting chess before holding PeterSvidler. The all-French clash between Laurent Fressinet and Maxime Vachier-Lagrave turned out to be the shortest game of the day.Split between The Louvre Museum in Paris and the Russian museum in Saint Petersburg, the tournament will have the first five rounds in Paris before the battle shifts to Russia for the last four games.