The Budapest Defense, Alekhine Variation, Abonyi Variation is a variation of the Indian Defense, catalogued as ECO A52. The line runs 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6, reaching the position shown below after 10 half-moves.
White holds the centre with pawns on e4. Development is level at zero minor pieces each. It is White to move after five moves.
On the Indian Defense generally: A family of defenses to 1.d4 where Black delays d5 in favor of piece development.
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The Budapest Defense, Alekhine Variation, Abonyi Variation goes 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6. It is a variation of the Indian Defense and is catalogued as ECO A52.
The Budapest Defense, Alekhine Variation, Abonyi Variation is ECO A52. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Indian Defense.
Stockfish evaluates the position after 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 at +0.64 at depth 18, which is a small but real edge for White. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
White holds the centre with pawns on e4. Development is level at zero minor pieces each. It is White to move.