Related Openings
Four knights - Gunsberg Variation	e4, e5, Nf3, Nc6, Nc3, Nf6, a3
Four knights - Italian Variation	e4, e5, Nf3, Nc6, Nc3, Nf6, Bc4
Four knights - Schultze-Mueller gambit	e4, e5, Nf3, Nc6, Nc3, Nf6, Nxe5
Three knights - Steinitz, Rosenthal Variation	e4, e5, Nf3, Nc6, Nc3, g6, d4, exd4, Nd5
Three knights - Steinitz Variation	e4, e5, Nf3, Nc6, Nc3, g6
Three knights - Winawer defense (Gothic defense)	e4, e5, Nf3, Nc6, Nc3, f5
Three knights - Schlechter Variation	e4, e5, Nf3, Nc6, Nc3, Bb4, Nd5, Nf6
Three knights game	e4, e5, Nf3, Nc6, Nc3