Queen's Gambit Accepted: Old Variation, Korchnoi Gambit
Queen's Gambit Accepted: Old Variation, Korchnoi Gambit is a chess opening with the ECO code D20, part of the Queen's Gambit Accepted family. It goes 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Kf1. White opens with 1. d4 (the queen's pawn) and Black answers 1... d5. After 11 moves it is Black to move. After the last move Black is a pawn ahead in material. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
The moves
1. d4 – White plays the pawn to d4
1... d5 – Black plays the pawn to d5
2. c4 – White plays the pawn to c4
2... dxc4 – Black captures on c4 with the d-pawn
3. e3 – White plays the pawn to e3
3... e5 – Black plays the pawn to e5
4. Bxc4 – White takes on c4 with the bishop
4... exd4 – Black captures on d4 with the e-pawn
5. Qb3 – White plays the queen to b3
5... Qe7 – Black plays the queen to e7
6. Kf1 – White plays the king to f1
About the Queen's Gambit Accepted
After 1.d4 d5 2.c4, Black takes with 2...dxc4. Black does not try to keep the pawn but uses the time to develop and hit the centre.
White usually wins the pawn back with e3 and Bxc4.
Black strikes back with ...c5 and ...e6, often getting an isolated d-pawn fight.
Holding the pawn with ...b5 is usually a mistake: a4 breaks the chain.
chessGM