Chytil, 18, and Andersson, 19, were recalled from Hartford of the American Hockey League on Sunday. They're the first pair of teenagers to play in the same game with the Rangers since Dave Maloney and Ron Greschner did so Dec. 19, 1974, according to the Elias Sports Bureau.
"Both kids had a good game," Rangers coach Alain Vigneault said. "It was an emotional day and an emotional game for them, but I thought they played well."
Rangers rookie goalie Alexandar Georgiev was pulled at 8:54 of the first period after allowing three goals on six shots. Ondrej Pavelec made 26 saves in relief, helping the Rangers stay in it after falling behind 4-0 in the first period.
It was Pavelec's first appearance since Feb. 9. He missed 18 games from Feb. 11-March 20 with a knee injury and was the backup to Georgiev the past two games.
"It was encouraging for the kids," Vigneault said. "He's been a real good teammate. It was good to see him go in goal there and have a good game."
The Capitals struck early in the first period with goals from Oshie at 2:50, Niskanen at 5:13, and Ovechkin on the power play at 8:54 for a 3-0 lead. Kuznetsov made it 4-0 at 16:39.