Related Openings
KGD - 2...Nf6	e4, e5, f4, Nf6
KGD - Classical, Heath Variation	e4, e5, f4, Bc5, Nf3, d6, b4
KGD - Classical, Reti Variation	e4, e5, f4, Bc5, Nf3, d6, c3, f5, fxe5, dxe5, d4, exd4, Bc4
KGD - Classical counter-gambit	e4, e5, f4, Bc5, Nf3, d6, c3, f5
KGD - Classical, Marshall attack	e4, e5, f4, Bc5, Nf3, d6, c3, Bg4, fxe5, dxe5, Qa4+
KGD - Classical, 4.c3	e4, e5, f4, Bc5, Nf3, d6, c3
KGD - Classical, Hanham Variation	e4, e5, f4, Bc5, Nf3, d6, Nc3, Nd7
KGD - Classical, Svenonius Variation	e4, e5, f4, Bc5, Nf3, d6, Nc3, Nf6, Bc4, Nc6, d3, Bg4, h3, Bxf3, Qxf3, exf4
KGD - Classical Variation	e4, e5, f4, Bc5
KGD - Norwalde Variation , Buecker gambit	e4, e5, f4, Qf6, Nf3, Qxf4, Nc3, Bb4, Bc4
KGD - Norwalde Variation	e4, e5, f4, Qf6
KGD - Mafia defense	e4, e5, f4, c5
KGD - Keene's defense	e4, e5, f4, Qh4+, g3, Qe7
King's gambit	e4, e5, f4