Trompowsky Attack: Borg Variation
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Statistics from Lichess
125,156 games: White 55.3% / Draw 3.9% / Black 40.8%
| Next move | Games | White / Draw / BlackW / D / B |
|---|---|---|
| 45,71146K | ||
| 39,87440K | ||
| 21,78522K | ||
| 7,9557,955 | ||
| 5,6635,663 | ||
| 1,5581,558 | ||
| 1,5571,557 | ||
| 647647 |
Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026
Engine evaluation
+0.74 White is better
Best play: 4. Bc1 h6 5. f3 Nf6 6. e4 d5 7. e5 Nh5 8. g4 Ng7
Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.
Overview
Trompowsky Attack: Borg Variation (ECO A45, Flank Openings) is a variation of the Trompowsky Attack, reached after 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g5 (3 moves).
In 125,156 rated Lichess games between players rated 1600 to 2500, White won 55.3%, Black 40.8% and 3.9% were drawn. White's most played move here is 4. Be5, in 37% of those games.
Written from the Lichess opening list and explorer. Know this line well? Write about it.
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How to play against the Trompowsky Attack: Borg Variation
The most played answer, 4. Be5, also scores best for White: 63.8%, with White winning 62.1% and Black 34.5% of 46K games. Of the main answers, 4. Bg3 scores lowest: 49.1%. Stockfish's first choice is 4. Bc1.
Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings
Cite this page
Caissa Codex. “Trompowsky Attack: Borg Variation (A45)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/trompowsky-attack-borg-variation