Chessy
Blackmar-Diemer Gambit: Diemer-Rosenberg Attack as White
The Blackmar-Diemer Gambit: Diemer-Rosenberg Attack asks White to trade a pawn for rapid piece play and an active queen’s bishop. After 1.d4 d5 2.e4 dxe4 3.Be3, you are already trying to make Black solve immediate problems, but the position is not automatically sound. Stockfish rates this -0.68, a small edge for Black. That makes this a useful drill for learning how to keep the pressure without drifting into trouble. Play the position below and test whether you can keep the initiative alive.
Play the Blackmar-Diemer Gambit: Diemer-Rosenberg Attack against the engine
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Create a free account →What this position is really about
Your main job is simple: use activity to compensate for the pawn. The bishop on e3 is aimed at an important square and helps White keep pieces ready for quick development. But because Black is already up a pawn, you need accurate follow-up rather than hope.
This is the kind of opening that suits players who like initiative, open lines, and direct piece play. If you are slow, Black’s extra pawn starts to matter. If you are energetic, Black can be forced to respond to threats instead of following a comfortable plan.
Black’s most common reply
The engine’s best move here is Nf6, and that is also the most common reply in practice. The listed continuation is Nf6 Ne2 h5 h3, which shows the kind of practical battle this opening often becomes: Black tries to hold the extra pawn and keep White from getting an easy attack.
For you, the key lesson is not to panic if Black develops naturally. You still need to finish development quickly and make the position difficult. In this opening, the drill is about staying active while the opponent has something concrete to defend.
What the database says
This exact position has been reached in 147,023 games in the Lichess database. The results are very close, but Black does slightly better overall: White wins 46.4%, draws 3.6%, and Black wins 50.0%.
That fits the engine’s verdict. The opening is playable and sharp enough to create chances, but it is not a free attack for White. If you want to use it successfully, you need to know where the pressure comes from and how to keep it going after Black’s most natural responses.
Other replies you should know
The most-played continuations besides Nf6 are Nc6 (13,975 games, White scores 47.9%), Bf5 (12,545 games, White scores 46.0%), e6 (11,795 games, White scores 48.9%), f5 (11,457 games, White scores 48.1%), and e5 (10,287 games, White scores 42.1%).
These numbers show that Black has several sensible ways to meet the gambit. Your training goal is to recognise the common setups and keep your development coordinated, no matter which reply appears across the board.
Results across 147,023 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nf6 | 74,977 | 45.8% |
| Nc6 | 13,975 | 47.9% |
| Bf5 | 12,545 | 46.0% |
| e6 | 11,795 | 48.9% |
| f5 | 11,457 | 48.1% |
| e5 | 10,287 | 42.1% |
Frequently asked questions
Is the Blackmar-Diemer Gambit: Diemer-Rosenberg Attack sound for White?
It is playable, but the numbers do not show a clear advantage for White. Stockfish gives this -0.68, a small edge for Black, so you should treat it as a practical attacking try rather than a guaranteed equaliser.
What is Black’s best move in this position?
The engine’s best move is Nf6. The listed continuation Nf6 Ne2 h5 h3 shows that Black often aims to keep the extra pawn while meeting White’s activity with solid play.
What does the database say about this exact position?
In 147,023 games, White wins 46.4%, draws 3.6%, and Black wins 50.0%. That means White scores well enough to make the opening interesting, but Black’s result is slightly better overall.
Which replies should I expect most often?
Nf6 is by far the most common reply, with 74,977 games. Other frequent moves are Nc6, Bf5, e6, f5, and e5, so it is worth learning how to handle more than one setup.
How many games feature the Blackmar-Diemer Gambit: Diemer-Rosenberg Attack?
Over 147K Lichess games have reached the Blackmar-Diemer Gambit: Diemer-Rosenberg Attack position. White wins 46.4%, Black wins 50.0%, with 3.6% draws — based on real rated games.