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

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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. That is a large edge for an opening position, so check the engine lines before playing it from the other side.
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+).