Chess opening · ECO B00
Borg Defense
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1. e4 g5
Borg Defense is catalogued under ECO code B00. It is reached after 1 move (2 half-moves): 1. e4 g5. After the last move it is White to play. White opens 1. e4. It is the defining line of the Borg Defense family, which has 5 catalogued lines in total. 2 deeper lines continue from here, listed below.