Five-time world champion Viswanathan Anand remains in sole lead position in the on-going Candidates chess tournament. At Khanty Mansiysk, Russia on Monday, he played out a draw with Vladimir Kramnik in the fourth round. The draw took Anand to three points out of a possible four in the 14-round tournament. Kramnik remained in tow of Anand on two and a half points. The Russian is joined by top seed Levon Aronian of Armenia on 2.5 points. Aronian scored a remarkable victory over Russian Peter Svidler.