Doug Williams IN 1986,for the Washington Redskins.
The last time the Redskins made it to the playoffs was in 2007. They lost the Wildcard game to the Seattle Seahawks Sports Media 101 sportsmedia101.com
The last time the Washington Redskins won a playoff game was after the 2005 season, during which they went 10-6 and qualified for the playoffs as a wild card team. They won the wild card playoff game against the Tampa Bay Buccaneers 17-10. The Redskins went on to lose in the divisional playoffs the next week to the Seattle Seahawks by the score of 20-10.
As of the 2008 season, that was January 8, 2000 against the Detroit Lions in the Wild Card round of the NFC playoffs. The Redskins won 27-13.
During the 2012 season, the Washington Redskins defeated the Dallas Cowboys in both games of their yearly home-and-away series. Washington's victory over the Cowboys in the final regular-season game of the season gave the Redskins their first playoff berth in years
2005: Won Wild Card Playoffs (Buccaneers) 17-10
The Seattle Seahawks most current playoff win was on January 6, 2013. They defeated the Washington Redskins, 24-14.
The 2007 Washington Redskins finished with a 9-and-7 record and a playoff berth in Joe Gibbs' final season as head coach.
Through the 2008 season, the last Redskins home playoff game was January 8, 2000 and was played at FedEx Field, which had been known as Jack Kent Cooke Stadium until the naming rights were sold to FedEx in November, 1999. The Redskins defeated the Detriot Lions, 27-13.
Through the 2009 season, that was January 7, 2006 when the Redskins defeated the Tampa Bay Buccaneers, 17-10.
Every game besides Dallas-Washington
They have never beat the Redskins in Washington.