ECO D37 · Queen's Gambit Declined

Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7

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

7. c5+0.26

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

Analyze this position

In the Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense (D37), reached after 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7, Stockfish 18 recommends 7. c5 for White. The position is roughly equal (+0.26).

Top engine moves

  1. +0.267. c5 c6 8. Bd3 b6 9. b4 a5 10. a3 Nh5 11. Be5 bxc5
  2. +0.197. a3 c5 8. cxd5 Nxd5 9. Nxd5 exd5 10. dxc5 Nxc5 11. Be5 Bf5
  3. +0.167. Be2 dxc4 8. Bxc4 a6 9. a4 c5 10. dxc5 Bxc5 11. O-O b6

Variations

Frequently asked questions

What is the best move in the Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense?
After 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7, Stockfish 18 at depth 18 recommends 7. c5 for White, continuing c6 8. Bd3 b6 9. b4 a5 10. a3 Nh5 11. Be5 bxc5. The position is roughly equal (+0.26). The next best moves are 7. a3 (+0.19) and 7. Be2 (+0.16).
Is the Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense a good opening?
Stockfish rates the position at +0.26: 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 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense?
D37. 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+).