Complex sentence: He tied for first place with Sergey Karjakin, Peter Svidler, Dmitry Jakovenko, Dmitry Andreikin and Vladimir Potkin in the 2012 Russian Championship Superfinal; after the rapid playoff to determine the winner, Alekseev finished sixth.
Split into simpler sentences: He tied for first place with Sergey Karjakin, Peter Svidler, Dmitry Jakovenko, Dmitry Andreikin and Vladimir Potkin in the 2012 Russian Championship Superfinal. After the rapid playoff to determine the winner, Alekseev finished sixth.