All ECO Codes
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C25
C25
Vienna Game
Hamppe-Muzio, Dubois Variation
1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 g5 5.Bc4 g4 6.O-O gxf3 7.Qxf3 Ne5 8.Qxf4 Qf6