Modern Defense with 1 e4 2.d4 Bg7 3.Nf3 43 Modern Defense with 1 e4 2.d4 Bg7 3.Nf3 d6 8 Modern Defense with 1 d4...3.Bf4 d6 4.e3 Nf6 4 Modern Defense Standard Two Knights Variation 4 Modern Defense Geller System 4...Nf6 4 Modern Defense Bishop Attack 3...d6 4.Nf3 4 Modern Defense with 1 e4...3.Nf3 d6 4.Bc4 Nf6 3 Modern Defense with 1 e4 3 Modern Defense Standard Two Knights Small Center Variation 3 Modern Defense with 1 e4 2.d4 Bg7 3.Nf3 d6 4.Be3 2 Modern Defense with 1 e4 2.d4 Bg7 3.Nf3 d6 4.Bd3 2 Modern Defense with 1 e4 2.d4 Bg7 3.Nf3 c6 2 Modern Defense with 1 e4 2.d4 2 Modern Defense with 1 e4 2.Bc4 2 Modern Defense with 1 d4...3.e4 Nc6 4.Nf3 d6 2 Modern Defense Standard Line 3...c6 4.Bc4 d6 5.Nf3 2 Modern Defense with 1 e4...4.h3 Nf6 5.Bd3 O O 1 Modern Defense with 1 e4...4.Bc4 e6 5.O O Ne7 1 Modern Defense with 1 e4...3.Nf3 d6 4.c4 Bg4 5.Be2 1 Modern Defense with 1 e4...3.Nf3 d6 4.Bc4 e6 5.O O 1 Modern Defense with 1 e4...3.Nf3 d6 4.Bc4 e6 1 Modern Defense with 1 e4...3.Nf3 d6 4.Bc4 Nf6 5.Nc3 1 Modern Defense with 1 e4...3.Nf3 c6 4.c4 d6 1 Modern Defense with 1 e4...3.Nf3 c6 4.c3 d6 1 Modern Defense with 1 e4 2.d4 d6 3.Nf3 Nf6 1 Modern Defense with 1 e4 2.d4 Bg7 3.Nf3 c6 4.Bd3 1 Modern Defense with 1 e4 2.d3 Bg7 1 Modern Defense with 1 e4 2.Nc3 Bg7 1 Modern Defense with 1 e4 2.Bc4 Bg7 1 Modern Defense with 1 d4...3.Nf3 d6 4.e4 Nf6 1 Modern Defense with 1 d4...3.Nf3 d6 4.e4 Nd7 1 Modern Defense with 1 d4 2.Bf4 1 Modern Defense Three Pawns Attack 3...d6 4.Nf3 Nf6 1 Modern Defense Standard Two Knights Variation 4...Nd7 1 Modern Defense Standard Two Knights Variation 4...Bg4 5.Be3 1 Modern Defense Standard Pterodactyl Defense 4.Nf3 cxd4 5.Nxd4 1 Modern Defense Standard Line...5.Nf3 b5 6.Bd3 Bb7 1 Modern Defense Standard Line...4.Bc4 d6 5.Nf3 Nf6 1 Modern Defense Gurgenidze Variation 3.f4 1 Modern Defense Averbakh Variation 4...c6 5.Nf3 Nf6 1 Modern Defense Averbakh Variation 4...c6 5.Nf3 Bg4 1 Modern Defense Averbakh Variation 4...Nd7 5.Nf3 e5 1