Borg Defense B00
B — Semi-open games · Family: Borg Defense
1. e4 g5
The Borg Defense is catalogued under the ECO code B00. Its main line runs 1. e4 g5.
After 2 half-moves the diagrammed position is reached and it is White to move. Material is balanced.
This encyclopedia records 5 variations inside the “Borg Defense” family — compare the branching lines in the tree below.
Play through the moves on the board above, explore the variations tree below — click any move of any branch — then test yourself against the engine from the position you picked.
- Position after 2 half-moves — White to move.
- Material is balanced.
- Family “Borg Defense” contains 5 recorded variation(s) here.
Variations tree of the Borg Defense family
Click any move to jump to that position; switch branches at any point with the alternative moves. Test your knowledge plays the shown position against the engine.
Variations of this family
| Name | ECO | Main line length |
|---|---|---|
| Borg Defense: Borg Gambit | A40 | 2 plies |
| Borg Defense: Borg Gambit | B00 | 4 plies |
| Borg Defense: Troon Gambit | B00 | 6 plies |
| Borg Defense: Zilbermints Gambit | B00 | 4 plies |
Related openings
Nearby ECO codes in the B — Semi-open games volume — compare the move orders: