ECO C42 Openings

Urosov Gambit, Petroff

Boden-Kieseritzky Gambit, Petroff

Lichtenhein Defense, Petroff

Russian Three Knights Var, Petroff

Paulsen Attack, Petroff

Karklins-Martinovsky Variation, Petroff

Millenium Attack, Petroff

Kaufmann Variation, Petroff

French Attack, Petroff

Classical Attack, Petroff

Marshall Variation, Petroff

Tarrasch Variation, Petroff

Staunton Variation, Petroff

Jaenisch Variation, Petroff

Browne Attack, Petroff

Chigorin Variation, Petroff

Berger Variation, Petroff

Mason Variation, Petroff

Mason-Showalter Variation, Petroff

Nimzovich Attack, Petroff

Lasker Variation, Petroff

Cozio (Lasker) Attack, Petroff

Cochrane Gambit, Petroff

Stafford Gambit, Petroff

Damiano Variation, Petroff

Kholmov Gambit, Petroff

Moody Gambit, Petroff