Benko Gambit
Also known as Benko, Volga Gambit
1.d4 Nf6 2.c4 c5 3.d5 b5
A bold positional gambit where Black gives up a wing pawn for lasting pressure down the half-open a- and b-files. Rather than a quick tactical strike, the Benko offers slow, durable compensation that can outlast the extra pawn deep into the endgame.
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What it does
After 1.d4 Nf6 2.c4 c5 3.d5 b5, Black invites White to capture on b5. Once the gambit is accepted, Black recaptures the a6-pawn with the bishop, opening the a-file and freeing the long light-squared diagonal. Black then fianchettoes the dark-squared bishop on g7, doubles rooks on the a- and b-files, and presses against White's queenside. The pressure is structural and persistent: Black's pieces find natural, harmonious squares while White must spend energy defending b2 and a2.
When to use it
Choose the Benko when you face 1.d4 and 2.c4 and want an active, clear plan as Black instead of a passive defence. It suits players who enjoy long-term positional pressure over memorising sharp tactics, and who are comfortable being a pawn down in return for easy piece play and a comfortable endgame. It is a fine practical weapon at club level, where the queenside pressure can be genuinely unpleasant to meet.
Why it works
The half-open a- and b-files give Black's rooks and bishops natural targets that never disappear, even after trades. White's extra pawn is on the queenside, exactly where Black attacks, so it is hard to use and often a liability. The g7-bishop rakes the long diagonal towards White's queenside, while the a6-bishop pressures the a6-f1 diagonal. This blend of open files and active diagonals means Black's compensation persists into the endgame - unusual for a gambit.
Key ideas
- Open the a- and b-files and double rooks behind them
- Fianchetto the dark-squared bishop to g7 for long-diagonal pressure
- The light-squared bishop on a6 eyes f1 and restrains White's king
- Compensation is positional and lasts into the endgame
- Press the queenside; White's extra pawn there is hard to use
- A clear, plan-based gambit - pressure over memorised tactics
Watch out
White can decline with 4.Nf3 or 4.Qc2, or fully accept and then neutralise Black's bishop via the King-walk (Bxf1, Kxf1, Kg1) to stay solid a pawn up. A common White error is passively clinging to the extra pawn while Black's rooks and bishops swarm the queenside. Black should not rush - the compensation is slow-burning, not a quick knockout.