D00

Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack

Chess diagram: Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack after 4. Qh5

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

Play any move on the board to explore from there, or step through the line with ‹ › and the arrow keys.

Statistics from Lichess

15,941 games: White 56.8% / Draw 3.8% / Black 39.4%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
8,9948,994
3,9473,947
1,5221,522
1,1131,113
6363
5959
5858
5252

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

−0.91 Black is better

Best play: 4... exd4 5. Bc4 Qe7 6. Bg5 Nf6 7. Bxf6 Qxf6 8. Nxe4 Qe7 9. O-O-O

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack (ECO D00, Closed & Semi-Closed Games) is a gambit in the Blackmar-Diemer Gambit: Lemberger Countergambit, reached after 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Qh5 (4 moves).

In 15,941 rated Lichess games between players rated 1600 to 2500, White won 56.8%, Black 39.4% and 3.8% were drawn. Black's most played move here is 4…exd4, in 56% of those games.

Written from the Lichess opening list and explorer. Know this line well? Write about it.

Write a description or report a mistake
What would you like to send?

Markdown supported (headings ###, bold, lists, links). Submissions are reviewed before publishing.

How to play against the Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack

4…Nc6 scores best for Black: 54.8%, with Black winning 52.7% and White 43.0% of 1,113 games. The most played answer, 4…exd4, scores lowest: 38.5% in 8,994 games. Stockfish's first choice is 4…exd4.

Main answers: those played in at least 5% of these games. Score: Black'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. “Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack (D00)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/blackmar-diemer-gambit-lemberger-countergambit-sneiders-attack