View Photo Gallery: The Redskins try for a win against the Seahawks

Fourth quarter: Redskins 23, Seahawks 17

The Redskins snapped their six-game losing streak Sunday, overcoming a 10-point fourth-quarter deficit and beating the Seattle Seahawks 23-17 at CenturyLink Field.

Among the day’s most unlikely heroes: receiver Anthony Armstrong, who hadn’t made a catch in more than a month -- since Oct. 23 at Carolina. Midway through the final quarter, on third-and-19 from midfield, Rex Grossman threw it deep. Armstrong pulled the ball down in the end zone for a 50-yard go-ahead touchdown. Seattle was called for defensive pass interference on the play, but it didn’t matter. Graham Gano’s extra point was blocked, and the Redskins pulled ahead 20-17.

In the final quarter, the Redskins had to climb out of a hole. In the opening minutes of the fourth, Seattle quarterback Tarvaris Jackson hit Golden Tate for a 15-yard touchdown, giving the Seahawks a 17-7 advantage, their largest lead of the game.

The Redskins trimmed that lead on their next drive. Rookie Roy Helu capped the Washington drive with a nifty 28-yard run, hurdling Seattle cornerback Roy Lewis en route to the end zone. It was his first career touchdown and cut the Seahawks’ lead to 17-14.

Washington’s defense held the Seahawks to a three-and-out on the next possession, before Grossman & Co. trotted back on the field. An intentional grounding penalty put the Redskins in a quick hole, creating third-and-19 situation and setting the stage for Armstrong’s dramatic game-winner.

Gano added a 25-yard field in the closing minutes to provide the final 23-17 score.

Helu led the Redskins with 23 carries and 108 yards, the most by a Redskins back since Ryan Torain on Oct. 2. Torain never entered Sunday’s game at Seattle. Helu also had a team-high seven catches, good enough for 54 receiving yards.

Grossman finished the game with a season-high 314 yards and was 26 of 35 passing. He had two touchdowns and two interceptions.

The Redskins amassed 417 yards of offense on the day and had 22 first downs.

Third Quarter: Seahawks 10, Redskins 7

Rex Grossman opened the third quarter the same way he opened the second quarter – by throwing an interception.

Washington’s defense held the Seahawks, and Seattle kicker Steven Hauschka missed a 51-yard field goal.

The Redskins got the ball on their own 41-yard line, and Grossman faked the handoff to Roy Helu, looked downfield and fired a bomb in the direction of Santana Moss – and three Seattle defensive backs. Cornerback Richard Sherman made the diving catch at the 15-yard line and returned it to the 22.

The Seahawks couldn’t convert that turnover into points, but on their next possession, the team went 47 yards in four plays, helped by a pass interfrence call, and took a 10-7 lead on a 36-yard Hauschka field goal.

For the quarter, Seattle out-gained the Redskins 69-52, and running back Marshawn Lynch rushed for 52 yards in the quarter alone. After he picked up 48 yards in the first two quarters combined, Lynch’s 52-yard third quarter gave him 100 yards on 19 carries.

Second Quarter: Redskins, Seahaws tied at 7

The Redskins continue to dominate the Seahawks statistically, but the two teams entered the half tied 7-7.

A Rex Grossman interception set the stage for Seattle’s first score of the afternoon early in the second quarter. On second-and-9 from the Washington 23-yard line, Seattle cornerback Brandon Browner picked off a Grossman pass and returned it 20 yards to the Redskins’ 16.

On the Bills’ next play, quarterback Tarvaris Jackson hit running back Marshawn Lynch with a 20-yard touchdown pass to tie the game.

The Redskins put together a nice drive on their ensuing possession, getting as far as the Seattle 5-yard line. Graham Gano trotted on the field for the field goal, but the 23-yard attempt was blocked when the Seahawks bowled over the Redskins, particularly Will Montgomery in the middle. It was Washington’s fourth blocked field goal of the year.

The Redskins played most of the quarter without safety LaRon Landry, who suffered a groin injury. His return was questionable.

Washington outgained Seattle 233 yards to 120. The Redskins also dominated time of possession, holding nearly a nine-minute advantage.

Grossman was 16 of 19 passing in the first half for 175 yards, with a touchdown and an interception. Roy Helu had 55 rushing yards on a career-high 13 carries. He also had 45 receiving yards on five catches.

First quarter:

After mustering only 16 first-quarter points all season long and failing to score a touchdown on a game-opening drive this year, the Washington Redskins finally reversed their fortunes against the Seattle Seahawks Sunday..

Stringing together a 14-play, 80-yard drive that ate up 7 minutes and 49 seconds, the Redskins finally found the end zone on their first possession of the game. After marching his team downfield while completing seven of eight passes (and with five Roy Helu carries sprinkled in between), Rex Grossman completed a 2-yard touchdown toss to tight end Fred Davis.

That 14-play drive was Washington’s longest since a 15-play drive in Week 2 against Arizona.

After holding Seattle to a short drive, Washington got the ball back on its own 4-yard line and went 68 yards, but had to punt after the drive stalled.

The quarter ended with Seattle taking over at the 20-yard line following Sav Rocca’s first touchback of the season.

Time of possession for the quarter: Washington: 12:23, Seattle 2:37. For the first quarter, Washington out-gained Seattle 172-23 and the Redskins had 10 first downs.