Indian Defense: Budapest Gambit Accepted is a chess opening with the ECO code A51, part of the Indian Defense family. It goes 1. d4 Nf6 2. c4 e5 3. dxe5. White opens with 1. d4 (the queen's pawn) and Black answers 1... Nf6. After 5 moves it is Black to move. After the last move White is a pawn ahead in material. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
The moves
1. d4 – White plays the pawn to d4
1... Nf6 – Black plays the knight to f6
2. c4 – White plays the pawn to c4
2... e5 – Black plays the pawn to e5
3. dxe5 – White captures on e5 with the d-pawn
About the Indian Defense
Black answers 1.d4 with 1...Nf6, controlling e4 with a piece instead of a pawn. This flexible move can lead to many systems.
Black waits to see White's setup before choosing ...e6, ...g6 or ...c5.
Many lines use a fianchetto, with the bishop on g7 or b7.
Early ...c5 and ...b5 ideas (like the Benko) fight for the queenside.
chessGM