World number two Viswanathan Anand kept himself in reckoning for his sixth title on the trot, winning in the sixth game against Grandmaster Teimour Radjabov of Azerbaijan in the Grenkeleasing World Rapid championship at Mainz Classic Chess in Germany.
With scores tied at 3-3 in the eight-game contest, the stage is set for a nail-biting finale, reminiscent of 2003 edition when the Indian came back from behind three times against World's top rated women Judit Polgar to eventually take the match on the final day.
Anand will be hoping for an encore but Radjabov is certainly proving out to be one of the toughest contestants for the Indian in his own forte - the rapid chess.
Anand has so far played three games with white, scoring just one point while with black his performance has been much better in which he netted two points out of three games.
It turned out to be a similar story in the other big match being played under Chess960 rules in which the position of the pieces is shuffled just before the start of the game.
After another engrossing day here, Russian GM Peter Svidler and Armenian challenger Levon Aronian remained tied at 3-3 score with just two games to one.
The third day provided one victory each for the contestants of this Chess960 world championship match.
In the Ordix open being played simultaneously, Chess 960 junior champion P Harikrishna showed tremendous fighting spirit to win all the five games of the opening day.