ECO A51

Indian Defense: Budapest Defense, Fajarowicz Defense, Bonsdorf Variation

Indian Defense: Budapest Defense, Fajarowicz Defense, Bonsdorf Variation is a chess opening classified under ECO A51. Its defining line here is 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 b6.

Indian Defense: Budapest Defense, Fajarowicz Defense, Bonsdorf Variation — board position♜♞♝♛♚♝♜♟♟♟♟♟♟♟♟♟♞♟♟♟♟♟♟♜♞♝♛♚♝♞♜

1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 b6

Explore this opening ▸Add to my repertoireOpen in analysis

The diagram shows the position after 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 b6. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.