Where according Chillingworth, is the one place where Dimmesdale could have successfully escaped him?

At the climax of the novel, Dimmesdale finally suceeds in
overcoming his guilt and shame by standing on the scaffold and professing to the entire
community what he has done. Even though this provides no physical escape, and one would
expect would actually result in a restriction of freedom, it is the only way that
Dimmesdale could have ever escaped Chillingsworth. He had made plans with Hester to find
a physical escape by fleeing with Pearl to England, but we find out that Chillingsworth
had learned of this and had made plans to board the ship with them. Dimmesdale can do
nothing physical to escape Chillingsworth, because Chillingsworth's torment is not
physical! The internal anguish that Dimmesdale feels as a result of his sins is tender
to the evil intent of Chillingsworth, making him an easy target and a passive prey. He
cannot run away, he cannot make his guilt go away, but he can admit his sins, even if it
kills him. Ultimately, death and the release from his torment go hand in hand, and
Chillingsworth cries "You have escaped me!" as Dimmesdale lies on the scaffold, finally
hand in hand with Pearl, dying.