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Borg Defense: Borg Gambit is a chess opening that arises after 1.d4 g5. It is classified A40 in the ECO system, and the position after these moves has white to move.
This position can also be reached by another move order, including 1.e4 g5 2.d4 Bg7.
This line is a variation within the Borg Defense family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.d4 g5.