Chess is a scientific game and its literature ought to be placed on the basis of the strictest truthfulness, which is the foundation of all scientific research. — W. Steinitz

C46

1.e4 e5 2.Nf3 Nc6 3.Nc3	Three Knights:
3…f5	Three Knights: Winawer
3…g6	Three Knights: Steinitz
3…g6 4.d4 exd4 5.Nd5	Three Knights: Steinitz (Rosenthal)
3…Bb4 4.Nd5 Nf6	Three Knights: Schlechter