ECO B21 · Sicilian Defense

Sicilian Defense: McDonnell Attack

1. e4 c5 2. f4

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

2… g6−0.16

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

Analyze this position

In the Sicilian Defense: McDonnell Attack (B21), reached after 1. e4 c5 2. f4, Stockfish 18 recommends 2… g6 for Black. The position is roughly equal (−0.16).

Top engine moves

  1. −0.162… g6 3. d4 cxd4 4. Qxd4 Nf6 5. Nc3 Nc6 6. Qd3 d6 7. Be2
  2. −0.142… Nc6 3. Nf3 e6 4. d3 d5 5. c3 Be7 6. Be2 Nh6 7. O-O
  3. −0.102… e6 3. Nf3 d5 4. Bb5+ Nd7 5. e5 c4 6. Ba4 Rb8 7. c3

Variations

Frequently asked questions

What is the best move in the Sicilian Defense: McDonnell Attack?
After 1. e4 c5 2. f4, Stockfish 18 at depth 18 recommends 2… g6 for Black, continuing 3. d4 cxd4 4. Qxd4 Nf6 5. Nc3 Nc6 6. Qd3 d6 7. Be2. The position is roughly equal (−0.16). The next best moves are 2… Nc6 (−0.14) and 2… e6 (−0.10).
Is the Sicilian Defense: McDonnell Attack a good opening?
Stockfish rates the position at −0.16: 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: McDonnell Attack?
B21. 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+).