ECO C49 · Four Knights Game

Four Knights Game: Spanish Variation, Svenonius Variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5

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

8. Bxc6+0.40

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Four Knights Game: Spanish Variation, Svenonius Variation (C49), reached after 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5, Stockfish 18 recommends 8. Bxc6 for White. White is slightly better (+0.40).

Top engine moves

  1. +0.408. Bxc6 bxc6 9. Nxe5 dxe4 10. Re1 Re8 11. Bf4 Nd5 12. Qd2 Qf6
  2. +0.388. Re1 dxe4 9. Bxc6 bxc6 10. Nxe5 Re8 11. Bf4 Nd5 12. Qd2 Qf6
  3. +0.338. exd5 Qxd5 9. c4 Qd6 10. Bxc6 bxc6 11. Bb2 Re8 12. Nd2 Bf5

Frequently asked questions

What is the best move in the Four Knights Game: Spanish Variation, Svenonius Variation?
After 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5, Stockfish 18 at depth 18 recommends 8. Bxc6 for White, continuing bxc6 9. Nxe5 dxe4 10. Re1 Re8 11. Bf4 Nd5 12. Qd2 Qf6. White is slightly better (+0.40). The next best moves are 8. Re1 (+0.38) and 8. exd5 (+0.33).
Is the Four Knights Game: Spanish Variation, Svenonius Variation a good opening?
Stockfish rates the position at +0.40: 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 Four Knights Game: Spanish Variation, Svenonius Variation?
C49. 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+).