ECO B43 · Sicilian Defense

Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4

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

8… Bxd4−0.50

Black is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream (B43), reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4, Stockfish 18 recommends 8… Bxd4 for Black. Black is slightly better (−0.50).

Top engine moves

  1. −0.508… Bxd4 9. e5 Bxe3 10. Qxg7 Bxf2+ 11. Kf1 Bh4 12. g3 Qe3 13. Be4
  2. +0.468… Kf8 9. e5 Nc6 10. Nxc6 Bxe3 11. fxe3 Qxe3+ 12. Qe2 Qxe2+ 13. Bxe2
  3. +0.538… Ne7 9. e5 Bb7 10. O-O Ng6 11. b4 Bxb4 12. Ndxb5 Qc6 13. Nc7+

Frequently asked questions

What is the best move in the Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream?
After 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4, Stockfish 18 at depth 18 recommends 8… Bxd4 for Black, continuing 9. e5 Bxe3 10. Qxg7 Bxf2+ 11. Kf1 Bh4 12. g3 Qe3 13. Be4. Black is slightly better (−0.50). The next best moves are 8… Kf8 (+0.46) and 8… Ne7 (+0.53).
Is the Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream a good opening?
Stockfish rates the position at −0.50: black 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 Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream?
B43. 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+).