ECO D00 · Blackmar-Diemer Gambit Declined

Blackmar-Diemer Gambit Declined: Elbert Countergambit

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e5

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

5. dxe5+0.80

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Blackmar-Diemer Gambit Declined: Elbert Countergambit (D00), reached after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e5, Stockfish 18 recommends 5. dxe5 for White. White is clearly better (+0.80).

Top engine moves

  1. +0.805. dxe5 Nfd7 6. f4 Bb4 7. Ne2 O-O 8. a3 Ba5 9. Be3 Nc6
  2. −0.245. Bb5+ c6 6. dxe5 Qxd1+ 7. Nxd1 Nfd7 8. Be2 Nxe5 9. fxe4 Be6
  3. −0.585. Be3 Bb4 6. dxe5 Nd5 7. Qd2 Nc6 8. Bg5 Bxc3 9. bxc3 e3

Frequently asked questions

What is the best move in the Blackmar-Diemer Gambit Declined: Elbert Countergambit?
After 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e5, Stockfish 18 at depth 18 recommends 5. dxe5 for White, continuing Nfd7 6. f4 Bb4 7. Ne2 O-O 8. a3 Ba5 9. Be3 Nc6. White is clearly better (+0.80). The next best moves are 5. Bb5+ (−0.24) and 5. Be3 (−0.58).
Is the Blackmar-Diemer Gambit Declined: Elbert Countergambit a good opening?
Stockfish rates the position at +0.80: white 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 Declined: Elbert Countergambit?
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+).