Seattle twice drove into Kansas City territory, twice went for it on fourth down while trying to dig out of a 17-3 hole and twice came up short on the frigid field inside Arrowhead Stadium.
Brock Purdy threw a pair of touchdown passes to George Kittle, and the 49ers won their first NFC West title since 2019, beating the Seattle Seahawks 21-13 on Thursday night.
Shanahan and the 49ers can repeat what they accomplished in 2019 and wrap up another NFC West title on Thursday night in Seattle against the Seahawks, but with far less stress this time.
Sam Darnold threw one touchdown pass, Chuba Hubbard and Raheem Blackshear both had rushing TDs, and the Panthers stayed in the thick of the muddled division race with a 30-24 win over the Seattle Seahawks
DK Metcalf caught an 8-yard touchdown pass from Geno Smith with 36 seconds to play, completing the Seahawks' late rally for a 27-23 win over the spiraling Rams on Sunday.
Josh Jacobs sprinted 86 yards for a game-ending touchdown and the Las Vegas Raiders won in overtime for the second straight week, beating the Seattle Seahawks 40-34.
The Seattle Seahawks thought they had solved their problems stopping the run. But the Seahawks' run defense has been terrible in their past two games, both losses.