A50
Mexican Defense: Horsefly Gambit
1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4
The Mexican Defense: Horsefly Gambit is a chess opening classified under ECO code A50. It is reached after the moves 1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4.
It belongs to the Mexican Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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