Kansas City hosted the Miami Dolphins in the second-coldest game ever held at Arrowhead Stadium on December 21 with the game-time temperature at 10&#160;&#176;F and a wind chill at &#8722;12&#160;&#176;F. It was the coldest conditions that Miami had ever played in. Miami scored first on the opening drive with a touchdown by WR Ted Ginn, Jr.. Despite trailing 10-0 early in the game, Tyler Thigpen led the Chiefs to a 28-24 lead by halftime. The Chiefs failed to score a touchdown in the second half of the game, only managing a field goal by Connor Barth. The Dolphins broke a 31-31 tie with a touchdown by TE Anthony Fasano with 4:08 remaining in the game. With just over a minute remaining, Chiefs LB Demorrio Williams forced and recovered a fumble to give the Chiefs another chance to tie the game. A failed drive capped off by Thigpen's third interception helped Miami run out the clock. Thigpen threw a career best 320&#160;yards with two touchdowns, but also threw three interceptions. TE Tony Gonzalez became the first Chiefs player and first NFL tight end to record four 1,000&#160;yard receiving seasons. The game also marked the last time Gonzalez played in Arrowhead Stadium as a member of the Chiefs, due to his trade to the Falcons following the season.
Question: how many points did chiefs win?
Answer: 31