ECO D00 · Blackmar-Diemer Gambit Declined

Blackmar-Diemer Gambit Declined: Weinsbach Defense

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e6

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

5. fxe4+0.48

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Blackmar-Diemer Gambit Declined: Weinsbach Defense (D00), reached after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e6, Stockfish 18 recommends 5. fxe4 for White. White is slightly better (+0.48).

Top engine moves

  1. +0.485. fxe4 Bb4 6. a3 Bxc3+ 7. bxc3 Nxe4 8. Qg4 Nf6 9. Qxg7 Rg8
  2. −0.435. Bg5 Bb4 6. fxe4 h6 7. Bxf6 Qxf6 8. Nf3 c5 9. a3 cxd4
  3. −0.695. a3 Nc6 6. Bb5 a6 7. Bxc6+ bxc6 8. Bg5 c5 9. d5 exf3

Variations

Frequently asked questions

What is the best move in the Blackmar-Diemer Gambit Declined: Weinsbach Defense?
After 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e6, Stockfish 18 at depth 18 recommends 5. fxe4 for White, continuing Bb4 6. a3 Bxc3+ 7. bxc3 Nxe4 8. Qg4 Nf6 9. Qxg7 Rg8. White is slightly better (+0.48). The next best moves are 5. Bg5 (−0.43) and 5. a3 (−0.69).
Is the Blackmar-Diemer Gambit Declined: Weinsbach Defense a good opening?
Stockfish rates the position at +0.48: white is slightly 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 Declined: Weinsbach 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+).