ECO A13 · English Opening

English Opening: Agincourt Defense, Tarrasch Defense

1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c5 5. b3 Nc6 6. O-O Be7

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

7. cxd5+0.11

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

Analyze this position

In the English Opening: Agincourt Defense, Tarrasch Defense (A13), reached after 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c5 5. b3 Nc6 6. O-O Be7, Stockfish 18 recommends 7. cxd5 for White. The position is roughly equal (+0.11).

Top engine moves

  1. +0.117. cxd5 Nxd5 8. Bb2 Bf6 9. Qc1 O-O 10. Nc3 b6 11. Nxd5 Bxb2
  2. +0.037. d4 dxc4 8. Ne5 Bd7 9. Bxc6 Bxc6 10. Nxc6 bxc6 11. dxc5 Qxd1
  3. −0.167. e3 d4 8. exd4 cxd4 9. Re1 Nd7 10. Qe2 a5 11. d3 e5

Frequently asked questions

What is the best move in the English Opening: Agincourt Defense, Tarrasch Defense?
After 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c5 5. b3 Nc6 6. O-O Be7, Stockfish 18 at depth 18 recommends 7. cxd5 for White, continuing Nxd5 8. Bb2 Bf6 9. Qc1 O-O 10. Nc3 b6 11. Nxd5 Bxb2. The position is roughly equal (+0.11). The next best moves are 7. d4 (+0.03) and 7. e3 (−0.16).
Is the English Opening: Agincourt Defense, Tarrasch Defense a good opening?
Stockfish rates the position at +0.11: 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 English Opening: Agincourt Defense, Tarrasch Defense?
A13. ECO codes classify chess openings from A00 to E99; A is the volume for flank openings.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).