Paris: World champion Viswanathan Anand made a disappointing start as he suffered a shock defeat at the hands of Englishman Michael Adams in the first round of Alekhine Memorial Chess Tournament at the Louvre. (Agencies)
On what turned out to be a day of big upsets, 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 at the top of his form as he grounded compatriot Nikita Vituigov while the other two games ended in draws.
Anand's 2012 World championship challenger Boris Gelfand of Israel played exciting chess as black before holding Peter Svidler, while 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 here before the battle shifts to Russia for the last four games.
Anand went down with white pieces, something that might be detrimental to the Indian's campaign as the tournament progresses further.
He went for the Ruy Lopez and for a line that Indian P Harikrishna had successfully chosen against Gata Kamsky of United States some time back.
Adams, however, remained a tough nut to crack from a level position that arose after the trade of queens.
The English Grandmaster took command by getting the Bishop pair and Anand's slightly defected pawn structure proved to be the decisive factor.
Paris: World champion Viswanathan Anand made a disappointing start as he suffered a shock defeat at the hands of Englishman Michael Adams in the first round of Alekhine Memorial Chess Tournament at the Louvre.