ECO D00 · Blackmar-Diemer Gambit Accepted

Blackmar-Diemer Gambit Accepted: Kaulich Defense

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c5

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White to move. The arrow shows Stockfish’s best move.
Best move

6. dxc5−0.20

The position is roughly equal. Stockfish 18, depth 18.

Analyze this position

In the Blackmar-Diemer Gambit Accepted: Kaulich Defense (D00), reached after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c5, Stockfish 18 recommends 6. dxc5 for White. The position is roughly equal (−0.20).

Top engine moves

  1. −0.206. dxc5 Qxd1+ 7. Kxd1 Bd7 8. Nb5 Na6 9. Be3 Ng4 10. Bg1 g6
  2. −0.246. Bf4 e6 7. dxc5 Bxc5 8. Qxd8+ Kxd8 9. O-O-O+ Bd7 10. Nd2 Ke8
  3. −0.386. Bg5 cxd4 7. Bb5+ Nc6 8. Nxd4 Bd7 9. Bxc6 Bxc6 10. Bxf6 gxf6

Frequently asked questions

What is the best move in the Blackmar-Diemer Gambit Accepted: Kaulich Defense?
After 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c5, Stockfish 18 at depth 18 recommends 6. dxc5 for White, continuing Qxd1+ 7. Kxd1 Bd7 8. Nb5 Na6 9. Be3 Ng4 10. Bg1 g6. The position is roughly equal (−0.20). The next best moves are 6. Bf4 (−0.24) and 6. Bg5 (−0.38).
Is the Blackmar-Diemer Gambit Accepted: Kaulich Defense a good opening?
Stockfish rates the position at −0.20: the position is roughly equal. 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: Kaulich Defense?
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+).