After the loss to New England, the Bears returned to Soldier Field to play the Minnesota Vikings. The weather conditions were harsh throughout the game; the below-freezing temperatures and swirling winds provided a clich&#233;d background for a rivalry game in the "Black and Blue Division".  Despite a marginal offensive performance, the Bears managed to defeat the Vikings 23-13. With their tenth win of the season, the Bears secured their second consecutive NFC North Title. Additionally, the Bears became the first team in the NFL to clinch a playoff berth, and remained tied for the NFL's best record.
Question: how many points did the vikings make?
Answer: 13