It isn't quite Fabiano Caruana's streak at the Sinquefield Cup, but Alexander Grischuk's score of 4.5/5 in the Tigran Petrosian Memorial (and 7.5 out of his last 8 games) is extremely impressive. Today's victim was Peter Leko, and although Leko is one of the most solid players in chess he was outfoxed in a complicated game and lost in just 33 moves.
He hasn't quite managed to clinch even a tie for first yet, with two rounds remaining, as Vladimir Kramnik is "only" a point and a half behind after drawing with Levon Aronian. Aronian is on 50%, as is Ding Liren (who drew with Ernesto Inarkiev) and Boris Gelfand (who defeated Alexander Morozevich in a nice game).
(Because I need to spend time working on the Carlsen-Anand analysis I won't take the time now to analyze the games from this round, but the two decisive games are worth your attention, so I'll post them here.)
Round 6 Pairings: