Berlin GP: Keymer outplays Dubov

In the one game that had a decisive result in round 3 of the Berlin Grand Prix, 17-year-old Vincent Keymer defeated Daniil Dubov to catch Leinier Dominguez in the lead of pool B. In pool A, Grigoriy Oparin managed to get a clearly superior position against Hikaru Nakamura, but failed to finish the US grandmaster off in a tactical middlegame. | Photos: World Chess