 In the opening, Anand exchanged his bishop for a knight, which led to a structure similar to that of the Exchange Variation of the Ruy Lopez where Black has doubled pawns.Carlsen defended accurately, and after further exchanges the two players settled for a repetition of moves around move 30.Carlsen opted for 1.e4 for the first time in the match and the game developed into a Ruy Lopez, Berlin Defence in which he managed to trade pieces and reach a symmetrical position with a draw in 33 moves.