ECO A13 · English Opening

English Opening: Agincourt Defense, Wimpy System

1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3

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

5… Nc6−0.15

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

Analyze this position

In the English Opening: Agincourt Defense, Wimpy System (A13), reached after 1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3, Stockfish 18 recommends 5… Nc6 for Black. The position is roughly equal (−0.15).

Top engine moves

  1. −0.155… Nc6 6. d4 cxd4 7. exd4 Qa5+ 8. Nbd2 Ba3 9. Bxa3 Qxa3 10. Bd3
  2. +0.025… Bd6 6. d4 cxd4 7. exd4 O-O 8. Bd3 dxc4 9. bxc4 b6 10. O-O
  3. +0.265… a6 6. g3 Be7 7. Bg2 O-O 8. O-O dxc4 9. bxc4 b5 10. Qe2

Frequently asked questions

What is the best move in the English Opening: Agincourt Defense, Wimpy System?
After 1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3, Stockfish 18 at depth 18 recommends 5… Nc6 for Black, continuing 6. d4 cxd4 7. exd4 Qa5+ 8. Nbd2 Ba3 9. Bxa3 Qxa3 10. Bd3. The position is roughly equal (−0.15). The next best moves are 5… Bd6 (+0.02) and 5… a6 (+0.26).
Is the English Opening: Agincourt Defense, Wimpy System a good opening?
Stockfish rates the position at −0.15: 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, Wimpy System?
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+).