ECO B44 · Sicilian Defense

Sicilian Defense: Taimanov Variation, Szén Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5

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

5… d6+0.21

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

Analyze this position

In the Sicilian Defense: Taimanov Variation, Szén Variation (B44), reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5, Stockfish 18 recommends 5… d6 for Black. The position is roughly equal (+0.21).

Top engine moves

  1. +0.215… d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O
  2. +0.365… Nf6 6. Bf4 e5 7. Bg5 Bc5 8. N1c3 d6 9. Nd5 Nxe4 10. Nbc7+
  3. +0.695… Bb4+ 6. c3 Be7 7. Nd6+ Bxd6 8. Qxd6 Nf6 9. f3 Qe7 10. Qxe7+

Frequently asked questions

What is the best move in the Sicilian Defense: Taimanov Variation, Szén Variation?
After 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5, Stockfish 18 at depth 18 recommends 5… d6 for Black, continuing 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O. The position is roughly equal (+0.21). The next best moves are 5… Nf6 (+0.36) and 5… Bb4+ (+0.69).
Is the Sicilian Defense: Taimanov Variation, Szén Variation a good opening?
Stockfish rates the position at +0.21: 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 Sicilian Defense: Taimanov Variation, Szén Variation?
B44. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

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