Lesson
White to move. Main line: 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5
Indian Defense: Budapest Gambit Accepted, Main Line, Alekhine Variation, Abonyi Variation (A52). The line runs 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 — the move order matters, and this is the one the theory follows.
The knight’s route to g4 attacks e5 and creates tactical pressure on f2. In this main line, ...Nxe5 restores material while Black’s pieces remain active.
White’s extra central space must compensate for the time spent defending e5. Black should develop quickly rather than chase another pawn; the gambit succeeds when activity survives the recovery.