Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 6. Ne5 e6 7. g4 Be4
The Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation is a chess opening classified as ECO D00, reached after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 6. Ne5 e6 7. g4 Be4. It is a line of the Blackmar-Diemer Gambit Accepted. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 2 times by this move order. White won 50%, 0% were drawn and Black won 50%. The most popular continuation is 8. Nxe4 (100% of games).
Engine evaluation: 0.00 (Stockfish, depth 44; best line 8. Nxe4 Nxe4 9. Qf3 Qh4+ 10. Kd1 Nf2+)
- ECO
- D00
- Moves
- 14 plies
- FEN
rn1qkb1r/ppp2ppp/4pn2/4N3/3Pb1P1/2N5/PPP4P/R1BQKB1R w KQkq - 1 8- PGN
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 6. Ne5 e6 7. g4 Be4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 1 | |
| 2000+ | 1 | |
| All | 2 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 8. Nxe4 | 2 (100%) |
Master games
2 over-the-board games are classified under this line (White 50%, draw 0%, Black 50%). The strongest:
- IM Kevin Terrieux (2446) – FM Maksim Omariev (2304) 0-1 · Titled Tue 19th Jul Early · 2022-07-19
- IM Shamil Arslanov (2410) – FM Timur Nurzhanov (2207) 1-0 · Titled Tue 14th Jul 2026 · 2026-07-14
Highest-rated Lichess games
- wiessyjr (2273) – iltar (2308) 1-0 · 2026-09-02 · 180 + 0s
- KYPITMAN356 (1718) – Schwabivari (1757) 0-1 · 2026-09-01 · 300 + 0s
Comes from
Blackmar-Diemer Gambit Accepted: Gunderam Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5
More Blackmar-Diemer Gambit Accepted lines (all)
- Blackmar-Diemer Gambit Accepted D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Mad Dog Attack D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Nimzowitsch Attack D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Studier Attack D00
- Blackmar-Diemer Gambit Accepted: Euwe Defense D00
- Blackmar-Diemer Gambit Accepted: Euwe Defense, Duthilleul Gambit D00
- Blackmar-Diemer Gambit Accepted: Euwe Defense, Zilbermints Gambit D00
- Blackmar-Diemer Gambit Accepted: Holwell Defense D00
- Blackmar-Diemer Gambit Accepted: Kaulich Defense D00
- Blackmar-Diemer Gambit Accepted: Pietrowsky Defense 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.