Can you give an example of a board position where the above definition applies and it is not a ladder problem?Given a position on an arbitrarily-sized Go board, and a white group with 2 liberties, can Black keep putting white in atari---that is, reduce white to 1 liberty---until capture?I agree that this definition is easy to understand. However, this definition for ladder is simply WRONG because it cover just some aspect of ladder formation and many many other Go formations.