 Anand played the Sicilian Defence, but with 3.Bb5+ Carlsen avoided the sharpest main lines.Anand's 28...Qg5 was a mistake, allowing Carlsen to play 29.e5 with strong pressure on Black's d6-pawn.Maintaining the tension with 30.Nc3, 30.Ng3, or 30.b4 should have given White a winning game, but Carlsen erred with 30.exd6, releasing the tension and allowing Anand to recoup the pawn soon after.