Queens Pawn Opening 1...c6 69 Queens Pawn Opening Zukertort Variation 2...c6 3.Bf4 66 Queens Pawn Opening Blackmar Blackmar Diemer Gambit 44 Queens Pawn Opening Zukertort Variation...3.Bf4 Bf5 4.e3 e6 43 Queens Pawn Opening Chigorin Variation 2...c6 41 Queens Pawn Opening Blackmar Diemer Teichmann Variation 41 Queens Pawn Opening Zukertort Variation 2...c6 3.e3 Bg4 39 Queens Pawn Opening Accelerated London System 2...c6 3.e3 Bf5 35 Queens Pawn Opening Blackmar Blackmar Diemer Gambit 3...Nf6 4.f3 exf3 5.Nxf3 32 Queens Pawn Opening Zukertort Variation 2...c6 26 Queens Pawn Opening Zukertort Variation 2...c6 3.Bf4 Bf5 4.e3 25 Queens Pawn Opening Blackmar Gambit 25 Queens Pawn Opening Blackmar Blackmar Diemer Gambit 3...Nf6 4.f3 21 Queens Pawn Opening Blackmar Diemer Ryder Gambit 19 Queens Pawn Opening Accelerated London System 19 Queens Pawn Opening Blackmar Diemer Zeller Defense 4.f3 exf3 18 Queens Pawn Opening Zukertort Variation...3.e3 Bg4 4.c4 e6 17 Queens Pawn Opening Blackmar Diemer Euwe Defense 17 Queens Pawn Opening Accelerated London System 2...c6 17 Queens Pawn Opening Chigorin Variation 16 Queens Pawn Opening Zukertort Chigorin Variation 3.Bf4 Nf6 4.e3 14 Queens Pawn Opening Zukertort Variation...3.e3 Bf5 4.c4 e6 5.Nc3 13 Queens Pawn Opening Zukertort Chigorin Variation 3.e3 12 Queens Pawn Opening Blackmar Diemer Ryder Tautvaisas Defense 12 Queens Pawn Opening 1...d5 2.e3 12 Queens Pawn Opening Zukertort Variation 2...c6 3.e3 11 Queens Pawn Opening Accelerated London System 2...c6 3.e3 10 Queens Pawn Opening...2.g3 g6 3.Bg2 Bg7 4.Nf3 9 Queens Pawn Opening Zukertort Variation 2...c6 3.e3 Bg4 4.c4 9 Queens Pawn Opening Krause Variation 3.e3 Nf6 4.c4 cxd4 5.exd4 9 Queens Pawn Opening Blackmar Diemer Vienna Diemer Gambit 9 Queens Pawn Opening Blackmar Diemer Tartakower Variation 9 Queens Pawn Opening Chigorin Variation...3.Bf4 a6 4.e3 e6 8 Queens Pawn Opening Zukertort Variation 2...c6 3.c3 7 Queens Pawn Opening Zukertort Chigorin Variation 3.Bf4 7 Queens Pawn Opening Zukertort Chigorin Variation 7 Queens Pawn Opening Levitsky Attack 2...c6 3.Nf3 7 Queens Pawn Opening Chigorin Variation 2...Nf6 3.Bf4 a6 4.e3 7 Queens Pawn Opening Blackmar Diemer Zeller Defense 4.f3 exf3 5.Qxf3 7 Queens Pawn Opening Blackmar Diemer Bogoljubov Defense 7 Queens Pawn Opening 1...d5 2.g3 c6 3.Bg2 7 Queens Pawn Opening 1...d5 7 Queens Pawn Opening Zukertort Variation 2...c6 3.c3 Bf5 4.Bf4 6 Queens Pawn Opening Zukertort Chigorin Variation 3.Bf4 Bf5 4.e3 6 Queens Pawn Opening Accelerated London System 2...e6 3.e3 6 Queens Pawn Opening Accelerated London System 2...Nf6 3.e3 c6 6 Queens Pawn Opening Zukertort Variation 2...c6 3.Bf4 Bf5 5 Queens Pawn Opening Chigorin Variation 2...Nf6 3.Bf4 e6 4.e3 5 Queens Pawn Opening Blackmar Diemer Vienna Variation 5 Queens Pawn Opening Blackmar Diemer Euwe Duthilleul Gambit 5