Oedipus solves the Sphinx’s riddle

Oedipus solves the Sphinx’s riddle in the episode that turns his arrival at Thebes into a public triumph. The Thebans reward him with kingship and Jocasta’s hand in marriage, bringing him unknowingly closer to the fate he had tried to escape.

The road to Thebes

After consulting an oracle about his origins, Oedipus is advised to flee the city he believes is his home: otherwise, he will become his father’s murderer and his mother’s spouse. On the road away from that supposed home, he meets King Laius and kills him in a sudden quarrel. He then reaches Thebes, where the Sphinx bars his way with a riddle.

The riddle and its reward

Oedipus solves the Sphinx’s riddle. The Thebans respond with gratitude, choosing him as their king and giving him Jocasta in marriage. The solution is therefore both an achievement in its own right and the immediate cause of his accession: he passes the obstacle at the city’s entrance and is welcomed into its rule.

Dramatic irony and consequence

The reward deepens the tragedy because Oedipus does not know his true origins. He has already killed Laius, his father, and his marriage to Jocasta makes her his wife without either of them knowing that she is his mother. The riddle’s solution brings public security and honor, while the marriage and kingship bind Oedipus to the oracle’s fulfillment. In the account, he reigns for years in peace and dignity and has two sons and two daughters with Jocasta; only later does a plague and renewed inquiry into the oracle expose the crisis surrounding Laius’s murder.