e3 main line; Black reaches a B,N vs B,N ending; pawn up A Gual Pascual vs A Kolev, 2001 (E59) Nimzo-Indian, 4.e3, Main line, 51 moves, 0-1 e3 main line; Larsen shows the way to win with Black mate. J H Donner vs Larsen, 1958  (E59) Nimzo-Indian, 4.e3, Main line, 33 moves, 0-1 E3 line, logical moves O Alexandrova vs S Milliet, 2011 (E58) Nimzo-Indian, 4.e3, Main line with 8...Bxc3, 22 moves, 1/2-1/2 3 games