Location:Arrowhead Stadium, Kansas City, MO
Overall records:Buffalo (5-6), Kansas City (6-5)
In a Nutshell:Buffalo jumped out to a nine-point lead, but they couldn't make it stand up. Kansas City scored 17 straight points and the Bills' offense stalled in the second half managing just a touchdown. The win moves the Chiefs (6-5) a full game ahead of the Bills (5-6) in the AFC Wild Card race and gives them a valuable head-to-head tiebreaker.
Sammy Watkins was the difference for the offense in the first half with six catches for 158 yards and a pair of touchdowns in the first half. He did not record a single reception in the second half.
Buffalo's defense gave up a handful big plays and their run defense surrendered six yards per carry and 158 rushing yards.
How it went down: **--The Bills put points on the board first on their opening possession with Dan Carpenter providing a 27-yard field goal for an early 3-0 lead just over three minutes into the game.
--Tyrod Taylor threw a dart to Sammy Watkins for a 28-yard touchdown to cap a 10-play 65-yard drive and push Buffalo's lead to 10-0 with a minute left in the opening quarter.
--The Chiefs put together a touchdown drive of their own midway through the second quarter. Alex Smith his Jeremy Maclin for a 37-yard pass play to set up first and goal and Spencer Ware took it from six yards out to make it a field goal game (10-7).
--Buffalo regained the lead on a 21-yard touchdown pass from Taylor to Watkins. It was his second score of the first half, but Dan Carpenter missed the extra point making it 16-7 Bills with just over two minutes left in the half.
--Kansas City answered in less than 30 seconds when Alex Smith threw a perfect bomb over Jeremy Maclin's shoulder for a 41-yard touchdown. Maclin got a step on rookie Ronald Darby, who had just re-entered the game (16-14).
--Travis Kelce gave the Chiefs their first lead of the game on a 15-yard touchdown catch from Smith less than four minutes into the third quarter (21-16).
--Tyrod Taylor was sacked by Tamba Hali and fumbled. The ball was recovered by Kansas City at the Buffalo 34-yard line. The Chiefs got a field goal off the turnover to extend their lead to eight (24-16) with eight minutes left in the third quarter.
--LeSean McCoy pulled the Bills to within two on a 10-yard touchdown catch from Taylor with three minutes left in the third quarter (24-22). The Bills attempted a two-point conversion, but it failed.
--Kansas City responded with a field goal drive. Cairo Santos put a 38-yard attempt up and through for a five-point Chiefs lead early in the fourth quarter (27-22).
--The Chiefs tacked on another field goal with 3:30 remaining to make it a one score game (30-22) for the final points.
Subplots: **LeSean McCoy rolled up more than 100 yards from scrimmage for the fifth straight game and had a touchdown.
Buffalo lost Karlos Williams to a shoulder injury in the first quarter. He did not return. DL Alex Carrington also left the game with a knee injury and did not return.
Ronald Darby and Stephon Gilmore had an uncharacteristic day. The most consistent players on defense this season, the tandem gave up four pass plays of 15 yards or more and a pair of touchdowns.
Tyrod Taylor was 21-38 passing for 291 yards and three touchdowns with a passer rating of 106.4.
Dan Carpenter missed his third extra point of the season following Buffalo's second touchdown of the game.
LeSean McCoy had a first quarter fumble in Kansas City territory, but Buffalo's defense forced a three-and-out to negate the Chiefs' threat.
Inactives:QB Josh Johnson, G John Miller, OT Cyrus Kouandjio, G Ryan Groy, WR Marcus Easley, DT Kyle Williams, DE Mario Williams
Up next:The Bills return home for the first time in a month to host the Houston Texans for a 1 pm kickoff Sunday.
Photos of the action from the Week 12 Chiefs vs. Bills game.