Black plays 30...Bd5!!
Black had to execute the KBN v. K mate in a time scramble.
White resigns in the final position because this is a theoretical position in the "W maneuver." The White king is trapped in a corner controlled by the Black bishop: for example, 102.Kf3 Be6! 103.Kf2 Bg4 and mate in a few moves. The tiebreak continues....