The Benko Gambit (or Volga Gambit) is a chess opening characterized by the move 3...b5 in the Benoni Defense arising after:
- 1. d4 Nf6
- 2. c4 c5
- 3. d5 b5
- Black sacrifices a pawn in order to gain rapid development. Apart from this, Black also obtains fast development and good control of the a1–h8 diagonal and can exert pressure down the half-open a- and b-files. These are benefits which can last well into the endgame and so, unusually for a gambit, Black does not generally mind if queens are exchanged; indeed, exchanging queens can often remove the sting from a kingside attack by White.
- The following game was actually played by Yury Nikolaevich Shaposnikov vs. Georgy Bastrikov in 1954:
- 1. d4, Nf6
- 2. c4, c5
- 3. d5, b5
- 4. cxb5, e6
- 5. Nc3, exd5
- 6. Nxd5, Bb7
- 7. e4, Nxe4
- White gives back the pawn in order to mobilize his f1 Bishop. But undeniably, Black controls the center.
- 8. Bf4, Qa5+
- 9. b4 ....
- Temporarily closing the diagonal.
- 9. .... cxb4
- 10. Bc4!? ....
- Since b3 is inevitable, White decides to create an escape square for his King.
- 10. .... b3
- 11. Kf1, b2!!
- 12. Rb1, Bd6!
- Defends the c7 square and prepares to castle at the kingside.
- 13. Qd4, 0-0
- Black decides to put his King to safety, sacrificing his Knight in the process. He cannot move the Knight without endangering his d7 Bishop.
- 14. Qxe4, Bxf4
- 15. Ne7+, Kh8
- 16. Qxf4, Qc3
- 17. Nf3, Re8
- 18. Qxf7, Na6
- 19. bxa6, Be4
- 20. Ke2, Bg6!!
- 21. Ng5, Rxe7!!
- 22. Qxe7, Qxc4+
- 23. Kf3, Bh5+
- White resigns. if 24. Ke3, then Black replies with Re8. If 24. Kg3, White mates with Qg4.