Blackmar-Diemer Gambit: Diemer-Rosenberg Attack
1. d4 d5 2. e4 dxe4 3. Be3
The Blackmar-Diemer Gambit: Diemer-Rosenberg Attack is a chess opening classified as ECO D00, reached after 1. d4 d5 2. e4 dxe4 3. Be3. It is a line of the Blackmar-Diemer Gambit. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 365 times by this move order. White won 45%, 4% were drawn and Black won 51%. The most popular continuation is 3… Nf6 (56% of games).
Engine evaluation: −0.86 (Stockfish, depth 40; best line 3… Nf6 4. Ne2 Bf5 5. Nd2 h5 6. h3)
- ECO
- D00
- Moves
- 5 plies
- FEN
rnbqkbnr/ppp1pppp/8/8/3Pp3/4B3/PPP2PPP/RN1QKBNR b KQkq - 1 3- PGN
1. d4 d5 2. e4 dxe4 3. Be3
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 175 | |
| 1500-1999 | 175 | |
| 2000+ | 15 | |
| All | 365 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 3… Nf6 | 205 (56%) | |
| 3… Nc6 | 44 (12%) | |
| 3… f5 | 29 (8%) | |
| 3… Bf5 | 26 (7%) | |
| 3… e6 | 24 (7%) | |
| 3… e5 | 14 (4%) | |
| 3… c5 | 5 (1%) | |
| 3… c6 | 5 (1%) |
Highest-rated Lichess games
- Serdukov (2150) – StevenEmily (2100) 1-0 · 2026-09-01 · 180 + 0s
- jazzman802 (2048) – EPPik (2087) 0-1 · 2026-09-04 · 180 + 0s
- jazzman802 (2011) – PATRIK1209 (2094) 0-1 · 2026-09-03 · 180 + 0s
Comes from
Blackmar-Diemer Gambit (1… d5 2. e4) 1. d4 d5 2. e4
More Blackmar-Diemer Gambit lines (all)
- Blackmar-Diemer Gambit (3. Nc3 Nf6) D00
- Blackmar-Diemer Gambit: Blackmar Gambit D00
- Blackmar-Diemer Gambit: Fritz Attack D00
- Blackmar-Diemer Gambit: Lemberger Countergambit D00
- Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation D00
- Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit D00
- Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack D00
- Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack D00
- Blackmar-Diemer Gambit: Lemberger Countergambit, Soller Attack D00
- Blackmar-Diemer Gambit: Netherlands Variation D00
- Blackmar-Diemer Gambit: Rasa-Studier Gambit D00
- Blackmar-Diemer Gambit: Reversed Albin Countergambit D00
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.