Variations
Queen's Gambit Accepted: Classical Defense, Russian Gambit
Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. e4
Queen's Gambit Accepted: Old Variation, Billinger Gambit
e5 4. Bxc4 exd4 5. Qb3 Qe7 6. a3
Queen's Gambit Accepted: Old Variation, Christensen Gambit
e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nf3
Queen's Gambit Accepted: Old Variation, Korchnoi Gambit
e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Kf1
Queen's Gambit Accepted: Old Variation, Novikov Gambit
e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nd2