Sicilian Defense: Moscow Variation, Dorfman Gambit (B51)

The Moscow Variation, Dorfman Gambit is a variation of the Sicilian Defense, catalogued as ECO B51. The line runs 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5, reaching the position shown below after 11 half-moves.

White holds the centre with pawns on e5, and one pawn capture is available, so the structure has not settled yet. Development is level at two minor pieces each. It is Black to move after six moves. White has castled while Black’s king is still uncommitted.

On the Sicilian Defense generally: The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically, leading to rich tactical play.

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Sicilian Defense: Moscow Variation, Dorfman Gambit — position after e5 a8b7c6d5e4f3g2h1
Position after 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5

Move order

#WhiteBlack
1e4c5
2Nf3d6
3Bb5+Nc6
4O-OBd7
5Qe2g6
6e5

ECO: B51

Stockfish: -0.16 at depth 18

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Frequently asked questions

What are the moves of the Moscow Variation, Dorfman Gambit?

The Moscow Variation, Dorfman Gambit goes 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5. It is a variation of the Sicilian Defense and is catalogued as ECO B51.

What is the ECO code for the Moscow Variation, Dorfman Gambit?

The Moscow Variation, Dorfman Gambit is ECO B51. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian Defense.

Is the Moscow Variation, Dorfman Gambit good for White?

Stockfish evaluates the position after 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5 at -0.16 at depth 18, which is balanced. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.

What kind of position does the Moscow Variation, Dorfman Gambit lead to?

White holds the centre with pawns on e5, and one pawn capture is available, so the structure has not settled yet. Development is level at two minor pieces each. It is Black to move. White has castled while Black’s king is still uncommitted.