+ ###############################################################
+ # Create the reverse quizzes
+
+ l = self.height * self.width
+ direction = quizzes[:, l : l + 1]
+ direction = world.token_forward * (
+ direction == world.token_backward
+ ) + world.token_backward * (direction == world.token_forward)
+ reverse_quizzes = torch.cat(
+ [quizzes[:, l + 1 :], direction, quizzes[:, :l]], dim=1
+ )
+
+ ar_mask = self.make_ar_mask(quizzes)
+
+ ###############################################################
+ # Check how many of the other models can solve them in both
+ # directions
+
+ nb_correct = []