ECO C47 Openings

Gunsberg Variation, Four Kngiths

Provincial Opening, 4 Knights

Noa Gambit, Four Knights

Bogoljubow (Scotch) Variation, 4 Knights

Oxford Gambit, Four Kngihts

Krause Gambit, Four Knights

Leonhardt Defense, Four Knights

Belgrade Gambit, 4 Knights

Schmid Gambit, Four Knights