Pirc Defense: Roscher Gambit is a chess opening with the ECO code B00, part of the Pirc Defense family. It goes 1. e4 d6 2. d4 Nf6 3. Nf3. White opens with 1. e4 (the king's pawn) and Black answers 1... d6. After 5 moves it is Black to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
The moves
1. e4 – White plays the pawn to e4
1... d6 – Black plays the pawn to d6
2. d4 – White plays the pawn to d4
2... Nf6 – Black plays the knight to f6
3. Nf3 – White plays the knight to f3
About the Pirc Defense
Black answers 1.e4 with 1...d6, then ...Nf6, ...g6 and ...Bg7. Black lets White build a centre and counterattacks it later.
Black breaks with ...e5 or ...c5 after castling.
White's sharpest try is the Austrian Attack with f4 and e5.
Another plan is Be3, Qd2 and Bh6 to trade Black's strong bishop.