ECO D00 · Blackmar-Diemer Gambit Accepted

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

abcdefgh87654321
Black to move. The arrow shows Stockfish’s best move.
Best move

8… Nc6−1.02

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack (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, Stockfish 18 recommends 8… Nc6 for Black. Black is clearly better (−1.02).

Top engine moves

  1. −1.028… Nc6 9. Bf4 Nh5 10. Bg5 Bg4 11. Be2 Nf6 12. d5 Nb4 13. h3
  2. −0.928… Bg4 9. Bf4 Nh5 10. Be3 e6 11. Ne4 Nd7 12. Qe1 Ndf6 13. Nxf6+
  3. −0.758… a6 9. a4 Nc6 10. Bf4 Bg4 11. d5 Bxf3 12. Rxf3 Na7 13. Be5

Frequently asked questions

What is the best move in the Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack?
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, Stockfish 18 at depth 18 recommends 8… Nc6 for Black, continuing 9. Bf4 Nh5 10. Bg5 Bg4 11. Be2 Nf6 12. d5 Nb4 13. h3. Black is clearly better (−1.02). The next best moves are 8… Bg4 (−0.92) and 8… a6 (−0.75).
Is the Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack a good opening?
Stockfish rates the position at −1.02: black is clearly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack?
D00. ECO codes classify chess openings from A00 to E99; D is the volume for closed and semi-closed games.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).