French Defense: Diemer-Duhm Gambit
1. e4 e6 2. d4 d5 3. c4
The French Defense: Diemer-Duhm Gambit is a chess opening classified as ECO C00, reached after 1. e4 e6 2. d4 d5 3. c4. It is a line of the French Defense. Black is to move. 1 named line continues from this position.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 983 times by this move order. White won 50%, 4% were drawn and Black won 46%. The most popular continuation is 3… dxe4 (69% of games).
Engine evaluation: −0.82 (Stockfish, depth 38; best line 3… dxe4 4. Nc3 f5 5. f3 Nf6 6. Be3)
- ECO
- C00
- Moves
- 5 plies
- FEN
rnbqkbnr/ppp2ppp/4p3/3p4/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - 0 3- PGN
1. e4 e6 2. d4 d5 3. c4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 169 | |
| 1500-1999 | 527 | |
| 2000+ | 287 | |
| All | 983 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 3… dxe4 Diemer-Duhm Gambit Accepted | 674 (69%) | |
| 3… c5 | 117 (12%) | |
| 3… c6 | 73 (7%) | |
| 3… Nf6 | 44 (4%) | |
| 3… dxc4 | 41 (4%) | |
| 3… Bb4+ | 13 (1%) | |
| 3… Nc6 | 6 (1%) | |
| 3… b6 | 5 (1%) |
Master games
4 over-the-board games are classified under this line (White 75%, draw 0%, Black 25%). The strongest:
- Mohamed Fathi (1660) – Aymen Abohbiel (1752) 1-0 · Arab Cities 2019 · 2019-02-23
- Carlos Alvaro Ramirez Goyeneche (1762) – Rafael Sequeiros Alvarado (1596) 1-0 · 17th American Cont Rapid · 2024-06-01
- Angelika Nikolova (1120) – Georgi Nenchev (1462) 0-1 · 31st Teteven Open 2016 · 2016-08-19
Search all games of the French Defense: Diemer-Duhm Gambit and its sub-variations
Highest-rated Lichess games
- IM shuriks91 (2853) – CM PchelkinVK (2650) 0-1 · 2026-09-05 · 180 + 0s
- IM shuriks91 (2772) – NightNightingale1 (2589) 0-1 · 2026-09-04 · 180 + 0s
- Panchis2310 (2506) – Nietzsche420 (2511) 0-1 · 2026-09-04 · 600 + 0s
Comes from
French Defense (2. d4 d5) 1. e4 e6 2. d4 d5
Continuations
- French Defense: Diemer-Duhm Gambit Accepted C00 · 1. e4 e6 2. d4 d5 3. c4 dxe4
More French Defense lines (all)
- French Defense (1. e4 e6) C00
- French Defense: Alapin Gambit C00
- French Defense: Baeuerle Gambit C00
- French Defense: Banzai-Leong Gambit C00
- French Defense: Banzai-Leong Gambit, Pinova Gambit C00
- French Defense: Bird Invitation C00
- French Defense: Carlson Gambit C00
- French Defense: Chigorin Variation C00
- French Defense: Franco-Hiva Gambit C00
- French Defense: Franco-Hiva Gambit Accepted C00
- French Defense: Franco-Sicilian Defense C00
- French Defense: Hoffmann Gambit C00
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.