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C21 Danish Gambit I General 3...Nf6 3...Nc6 3...d6 3...c5 3...d3 4...Nf6 4...Qf6 4...d6 4...d5 4.Nc3 #4...Nc6 4...Bb4 4...Bc5 4...Qb3 4...c2 89 games, 1843-2011 C21 Danish Gambit II Sorensen Defense (4.ed5) (4.Qd4) (4.e5) 77 games, 1867-2011 C21 Danish Gambit III Copenhagen Defense 5...Bb4 6.Nc3 6.Kf1 Accepted Classical Defense 6.Nc3 6.e5 Accepted 5...d6 5...Nc6 5...Qg5 5...Bb4 & others Accepted Svenonius Defense 3...Ne7 57 games, 1860-2011 C21 Danish Gambit IV Chigorin Defense (3...Qe7 4.cd4 4.Bd3 4.f3 4.Qe2 4.Qd4) (4...Qe7 5.Nc3) (5...Qe7 6.Nc3 6.Nd2) Schlechter Defense 6.ed5 6...Bb4 6...Nf6 Scotch Game Göring Gambit Double Pawn Sacrifice 4...Nc6 5.Nf3 44 games, 1873-2006 C40 Latvian Gambit I Main Line 3.Ne5 Qf6 5.Nf3 Leonhardt Variation 3.Ne5 Qf6 4.Nc4 Bronstein Attack 3.Ne5 Qf6 5.Nc4 6.Be2 Nimzowitsch Attack 3.Ne5 Qf6 6.Ne3 22 games, 1841-2011 C40 Latvian Gambit II Bilguer Variation 3.Ne5 Qf6 5.Nc4 5.Ng4 48 games, 1837-2010 C40 Latvian Gambit III Greco Variation 3.Ne5 Qe7 General 3.Ne5 2.Bc4 3.Bc4 3.Nc3 3.d3 Accepted 3...e4 3...Nf6 3...Nc6 3...d6 Spanish Game Schleimann Defense Jaenisch Gambit Accepted Mayet Attack 3.Bc4 fe4 4.Ne5 Nf6 Mayet Attack Polerio-Svedenborg Variation 3.Bc4 fe4 4.Ne5 d5 5.Qh5 Mayet Attack Poisoned Pawn Variation 3.Bc4 fe4 4...Qg5 Mayet Attack Strautins Gambit 3.Bc4 b5 Italian Game Rousseau Gambit 2.Bc4 3.Bc4 Corkscrew Gambit 4.Bc4 fe4 5.Bf7 58 games, 1620-2010 C40 Latvian Gambit IV Mason Countergambit 3.d4 Mlotkowski Variation 3.Nc3 fe4 4.Ne4 Fraser Defense 3.Ne5 Nc6 4.Qh5 4.Nc6 4.d4 43 games, 1872-2011