ECO C43 · Bishop's Opening

Bishop's Opening: Urusov Gambit, Keidansky Gambit

1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nxe4 5. Qxd4

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

5… Nf6−0.10

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

Analyze this position

In the Bishop's Opening: Urusov Gambit, Keidansky Gambit (C43), reached after 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nxe4 5. Qxd4, Stockfish 18 recommends 5… Nf6 for Black. The position is roughly equal (−0.10).

Top engine moves

  1. −0.105… Nf6 6. Nc3 Nc6 7. Qh4 Qe7+ 8. Be3 d5 9. Nxd5 Nxd5 10. Bxd5
  2. +0.195… d5 6. Bxd5 Nf6 7. Bxf7+ Kxf7 8. Qxd8 Bb4+ 9. Qd2 Re8+ 10. Kd1
  3. +0.485… Nc5 6. Bg5 f6 7. Nc3 Nc6 8. Qd5 Qe7+ 9. Be3 d6 10. Qd2

Frequently asked questions

What is the best move in the Bishop's Opening: Urusov Gambit, Keidansky Gambit?
After 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nxe4 5. Qxd4, Stockfish 18 at depth 18 recommends 5… Nf6 for Black, continuing 6. Nc3 Nc6 7. Qh4 Qe7+ 8. Be3 d5 9. Nxd5 Nxd5 10. Bxd5. The position is roughly equal (−0.10). The next best moves are 5… d5 (+0.19) and 5… Nc5 (+0.48).
Is the Bishop's Opening: Urusov Gambit, Keidansky Gambit a good opening?
Stockfish rates the position at −0.10: 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: Urusov Gambit, Keidansky Gambit?
C43. 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+).