ECO C23 · Bishop's Opening

Bishop's Opening: Lewis Countergambit, Walker Variation

1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4

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

5… exd4+0.01

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

Analyze this position

In the Bishop's Opening: Lewis Countergambit, Walker Variation (C23), reached after 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4, Stockfish 18 recommends 5… exd4 for Black. The position is roughly equal (+0.01).

Top engine moves

  1. +0.015… exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Qxd2 c6 9. Bb3 Nxe4 10. Qf4
  2. +0.385… Bb6 6. Bg5 h6 7. Bxf6 Qxf6 8. Nf3 exd4 9. cxd4 Nc6 10. e5
  3. +0.725… Nxd5 6. dxc5 Ne7 7. Qxd8+ Kxd8 8. Be3 Be6 9. Nf3 f6 10. Nfd2

Frequently asked questions

What is the best move in the Bishop's Opening: Lewis Countergambit, Walker Variation?
After 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4, Stockfish 18 at depth 18 recommends 5… exd4 for Black, continuing 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Qxd2 c6 9. Bb3 Nxe4 10. Qf4. The position is roughly equal (+0.01). The next best moves are 5… Bb6 (+0.38) and 5… Nxd5 (+0.72).
Is the Bishop's Opening: Lewis Countergambit, Walker Variation a good opening?
Stockfish rates the position at +0.01: 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 Bishop's Opening: Lewis Countergambit, Walker Variation?
C23. ECO codes classify chess openings from A00 to E99; C is the volume for open games and the French Defense.

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