What does "impasse" mean in the context of the passage?
"I have no doubt you could kill me. Any man who can get by Inigo and Fezzik would have no trouble disposing of me. However, has it occurred to you that if you did that, then neither of us would get what we want—you having lost your ransom item, me my life."
"We are at an impasse then," said the man in black.
"I fear so," said the Sicilian. "I cannot compete with you physically, and you are no match for my brains."