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In page Vladimir Kramnik:

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He also participated in the London Chess Classic in December, finishing second to Magnus Carlsen, losing their head-to-head encounter on the Black side of the English Opening. Kramnik's performance in 2009 allowed his rating (average of July 2009 and January 2010 ratings) to be high enough to qualify for the Candidates Tournament to determine the challenger for the World Chess Championship 2012.[citation needed]