Azerbaijan`s grandmaster Shahriyar Mammadyarov has ranked 2nd with 6,5 points at the Basque system tournament of the SportAccord World Mind Games in Beijing, China after defeating Armenian Levon Aronian in the last round, Azartac reported.Russia`s Sergey Karjakin topped the table, while Ukrainian Ruslan Ponomariov finished third.Basque system is an interesting idea, opponents are playing on two boards simultaneously, one with white pieces and one with black. It makes the matches really exciting. One of the most important parts is the time management.ANN.Az