The Coles Sicilian Gambit is a variation of the Sicilian Defense, catalogued as ECO B21. The line runs 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4, reaching the position shown below after 9 half-moves.
White holds the centre with pawns on e4. Development is level at one minor pieces each. It is Black to move after five moves.
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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The Coles Sicilian Gambit goes 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4. It is a variation of the Sicilian Defense and is catalogued as ECO B21.
The Coles Sicilian Gambit is ECO B21. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian Defense.
Stockfish evaluates the position after 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4 at -0.82 at depth 18, which is a small but real edge for Black. 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.
White holds the centre with pawns on e4. Development is level at one minor pieces each. It is Black to move.