Slav Defense: Diemer Gambit
1. d4 d5 2. c4 c6 3. e4
The Slav Defense: Diemer Gambit is a chess opening classified as ECO D10, reached after 1. d4 d5 2. c4 c6 3. e4. It is a line of the Slav Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 274 times by this move order. White won 49%, 3% were drawn and Black won 48%. The most popular continuation is 3… dxe4 (54% of games).
Engine evaluation: −0.46 (Stockfish, depth 56; best line 3… dxe4 4. Nc3 Nf6 5. Nge2 Bf5 6. Ng3)
- ECO
- D10
- Moves
- 5 plies
- FEN
rnbqkbnr/pp2pppp/2p5/3p4/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - 0 3- PGN
1. d4 d5 2. c4 c6 3. e4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 118 | |
| 1500-1999 | 134 | |
| 2000+ | 22 | |
| All | 274 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 3… dxe4 | 147 (54%) | |
| 3… e6 | 77 (28%) | |
| 3… Nf6 | 27 (10%) | |
| 3… dxc4 | 7 (3%) | |
| 3… a6 | 3 (1%) | |
| 3… g6 | 3 (1%) | |
| 3… Qa5+ | 2 (1%) | |
| 3… b6 | 2 (1%) |
Master games
6 over-the-board games are classified under this line (White 50%, draw 0%, Black 50%). The strongest:
- WFM Marya Demina (1890) – FM Sergey Fazulyanov (2350) 0-1 · Titled Tue 12th Sep Early · 2023-09-12
- Konstantin L Gumirov (1884) – FM Alexei Gubajdullin (2331) 0-1 · Korchnoi Memorial Open · 2019-08-14
- WFM Uliana Yeshchenko (2097) – P. Komal Kishore (2086) 1-0 · Titled Tuesday 25th Jan · 2022-01-25
- Jakub Szotkowski (2144) – Mikolaj Tomczak (1965) 0-1 · VI Karkonosze Open A · 2013-02-22
- CM Stephen Willy (1994) – WCM Patricia Evarista Castillo Pena (1872) 1-0 · Titled Tue 5th Mar Early · 2024-03-05
Search all games of the Slav Defense: Diemer Gambit and its sub-variations
Highest-rated Lichess games
- draxoni (2310) – ArsenXanov (2316) 1-0 · 2026-09-06 · 180 + 0s
- SerdarYalkanovTKM (2296) – ever1st (2229) 1-0 · 2026-09-01 · 180 + 0s
- Guzzian (2267) – PSPierre (2207) 1-0 · 2026-09-03 · 600 + 0s
Comes from
Slav Defense (2. c4 c6) 1. d4 d5 2. c4 c6
More Slav Defense lines (all)
- Slav Defense (2… c6 3. Nc3) D10
- Slav Defense (3. Nc3 dxc4) D10
- Slav Defense: Exchange Variation (2… c6 3. cxd5) D10
- Slav Defense: Exchange Variation, Boor Attack D10
- Slav Defense: Slav Gambit, Alekhine Attack D10
- Slav Defense: Winawer Countergambit D10
- Slav Defense: Winawer Countergambit, Anti-Winawer Gambit D10
- Slav Defense: Bonet Gambit D11
- Slav Defense: Breyer Variation D11
- Slav Defense: Modern Line (2… c6 3. Nf3) D11
- Slav Defense: Modern Line (5. Bg2 g6) D11
- Slav Defense: Modern Line (5… e6 6. O-O) D11
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.