R Praggnanandhaa draws Levon Aronian in the sixth round of the Sinquefield Cup, keeping him joint second with 3.5 points. Wesley So leads with four points after drawing Maxime Vachier-Lagrave. Praggnanandhaa survives a tricky middle game after losing two pawns. Anish Giri is the only winner of the round, defeating Jorden van Foreest.