ECO C30 Openings

Classical Defense, KGD

Heath Variation, KGD; Rotlewi Countergambit

Marshall (Euwe) Attack, KGD

Rubinstein Countergambit, KGD

Svenonius Variation, KGD

Senechaud Counter-Gambit, KGD

Mafia Defense, KGD

Panteldakis Countergambit, KGD

Soller-Zilbermints Gambit, KGD

Zilbermints Double Countergambit; KGD

Queen's Knight Defense, KGD

Miles Defense, KGD

Zilbermints Double Gambit I, KGD

Petrov's Defense, KGD

Norwalde (Norwalder) Variation, KGD

Schubert Variation, KGD

Keene Defense, KGD