Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh1
The Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack is a chess opening classified as ECO D00, reached after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh1. It is a line of the Blackmar-Diemer Gambit Accepted. Black 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… Nc6 (50% of games).
Engine evaluation: −0.79 (Stockfish, depth 26; best line 8… Nc6 9. Bf4 Nh5 10. Be3 Bg4 11. Be2)
- ECO
- D00
- Moves
- 15 plies
- FEN
rnbq1rk1/ppp1ppbp/5np1/8/2BP4/2N2N2/PPP3PP/R1BQ1R1K b - - 5 8- PGN
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh1
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 2 | |
| All | 2 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 8… Nc6 | 1 (50%) | |
| 8… c6 | 1 (50%) |
Highest-rated Lichess games
- Alllegg (1734) – feyyazaykol (1816) 0-1 · 2026-09-01 · 300 + 3s
- bulayhi (1666) – VKP912621 (1697) 1-0 · 2026-09-07 · 300 + 0s
Comes from
Blackmar-Diemer Gambit Accepted: Bogoljubow Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6
More Blackmar-Diemer Gambit Accepted lines (all)
- Blackmar-Diemer Gambit Accepted 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: Gunderam Defense D00
- Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation 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.