ECO A21 · English Opening

English Opening: King's English Variation, Troger Defense

1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6

abcdefgh87654321
White to move. The arrow shows Stockfish’s best move.
Best move

5. Nf3+0.73

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the English Opening: King's English Variation, Troger Defense (A21), reached after 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6, Stockfish 18 recommends 5. Nf3 for White. White is slightly better (+0.73).

Top engine moves

  1. +0.735. Nf3 Qd7 6. d4 Bxc4 7. d5 Nce7 8. Nd2 Ba6 9. b4 b6
  2. +0.465. d3 Qd7 6. Nf3 Be7 7. O-O Bh3 8. Bxh3 Qxh3 9. Nd5 Bd8
  3. +0.415. Qa4 Nf6 6. Nf3 Qd7 7. d3 Be7 8. Ng5 Bf5 9. Bd2 O-O

Frequently asked questions

What is the best move in the English Opening: King's English Variation, Troger Defense?
After 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6, Stockfish 18 at depth 18 recommends 5. Nf3 for White, continuing Qd7 6. d4 Bxc4 7. d5 Nce7 8. Nd2 Ba6 9. b4 b6. White is slightly better (+0.73). The next best moves are 5. d3 (+0.46) and 5. Qa4 (+0.41).
Is the English Opening: King's English Variation, Troger Defense a good opening?
Stockfish rates the position at +0.73: 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 English Opening: King's English Variation, Troger Defense?
A21. 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+).