Nico Zwirs beat Christopher Yoo with white to become the outright winner of the A-Open in the 51st edition of the Dortmund Chess Festival. Out of a Sicilian Defence, the Dutch GM first defended resourcefully and then showed excellent technique in a rook ending. In the match between Elisabeth Paehtz and Dinara Wagner, a sixth draw (in six games) was signed on Sunday. | Photos: Hoogeveen Chess 2018 / Frans Peeters

