Oedipus (Euripides) and hence the fragment describing the blinding refers to Oedipus as the son of Polybus. The blind Oedipus has a scene with Jocasta and possibly Periboea in which the fact that his biological parents are Laius and Jocasta is revealed. Menoetes, another servant of Laius who had originally exposed Oedipus when he was born, might have played a role in this recognition scene as well. As a result of this revelation, Creon wants to exile Oedipus as further punishment, generating the later fragments. These include Jocasta's support for and sharing of moral responsibility with Oedipus and her accusing Creon of
Oedipus and the Sphinx pass. Failure means his own death and that of the besieged Thebans. The riddle was: "What walks on four feet in the morning, two in the afternoon and three at night?". Oedipus answered: "Man: as an infant, he crawls on all fours; as an adult, he walks on two legs and; in old age, he uses a walking stick". Oedipus was the first to answer the riddle correctly and, having heard Oedipus' answer, the Sphinx was astounded and inexplicably killed herself by throwing herself into the sea. Oedipus thereby won the freedom of the Thebans, the kingdom of that city