Oedipus Rex unconditional (Laius "will" have a son who will kill him). Both Aeschylus and Euripides write plays in which the oracle is conditional; Sophocles ... chooses to make Laius's oracle unconditional and thus removes culpability for his sins from Oedipus, for he could not have done other than what he did, no matter what action he took. This interpretation is supported by Jocasta's repetition of the oracle at lines 854–55: "Loxias declared that the king should be killed by/ his own son." In the Greek, Jocasta uses the verb "chrênai": "to be fated, necessary." This iteration of the oracle seems to
Oedipus Rex larger myth obliquely, which was already known to the audience in Athens at the time. The trilogy containing "Oedipus Rex" took second prize in the City Dionysia at its original performance. Aeschylus's nephew Philocles took first prize at that competition. However, in his "Poetics", Aristotle considered "Oedipus Rex" to be the tragedy which best matched his prescription for how drama should be made. Many modern critics agree with Aristotle on the quality of "Oedipus Rex", even if they don't always agree on the reasons. For example, Richard Claverhouse Jebb claimed that "The "Oedipus Tyrannus" is in one sense the masterpiece