Modern Defense
39 named lines, ECO A04–B27. The main position arises after1. e4 g6.
| Line | Games | White / draw / Black |
|---|---|---|
| Modern Defense (1. e4 g6) B06 · 1. e4 g6 | 210,324 | |
| Modern Defense (2. d4 Bg7) B06 · 1. e4 g6 2. d4 Bg7 | 84,332 | |
| Fianchetto Gambit B06 · 1. e4 g6 2. d4 f5 | 171 | |
| Norwegian Defense B06 · 1. e4 g6 2. d4 Nf6 | 1,287 | |
| Bishop Attack B06 · 1. e4 g6 2. d4 Bg7 3. Bc4 | 1,470 | |
| Lizard Defense, Pirc-Diemer Gambit A40 · 1. d4 g6 2. h4 Nf6 3. h5 | 17 | |
| Standard Line B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 | 11,751 | |
| Three Pawns Attack B06 · 1. e4 g6 2. d4 Bg7 3. f4 | 5,385 | |
| Westermann Gambit B06 · 1. e4 g6 2. d4 Bg7 3. Bd2 | 83 | |
| Wind Gambit B06 · 1. e4 g6 2. d4 Bg7 3. Bd3 | 257 | |
| Modern Defense (3. Nc3 d6) A41 · 1. d4 g6 2. c4 Bg7 3. Nc3 d6 | 7,556 | |
| Bishop Attack, Bücker Gambit B06 · 1. e4 g6 2. d4 Bg7 3. Bc4 b5 | 2 | |
| Lizard Defense, Mittenberger Gambit B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 d5 | 283 | |
| Modern Pterodactyl B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 c5 | 1,078 | |
| Mongredien Defense, with Nc3 B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 b6 | 680 | |
| Mongredien Defense, with Nf3 B06 · 1. e4 g6 2. d4 Bg7 3. Nf3 b6 | 2,667 | |
| Neo-Modern Defense A41 · 1. d4 g6 2. c4 Bg7 3. e4 e5 | 62 | |
| Standard Defense B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 d6 | 5,795 | |
| Averbakh System A42 · 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 | 4,376 | |
| Geller's System B07 · 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 | 620 | |
| Pseudo-Austrian Attack B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 | 887 | |
| Two Knights Variation B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 | 1,158 | |
| Bishop Attack, Monkey's Bum B06 · 1. e4 g6 2. Bc4 Bg7 3. Qf3 e6 4. d4 Bxd4 | 24 | |
| Kotov Variation A42 · 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 | 894 | |
| Norwegian Defense, Norwegian Gambit B06 · 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 d6 | 50 | |
| Pterodactyl Variation B27 · 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 | 10 | |
| Randspringer Variation A42 · 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 f5 | 39 | |
| Semi-Averbakh Variation, Polish Variation A04 · 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qb6 | – | |
| Semi-Averbakh Variation, Pterodactyl Variation A04 · 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ | – | |
| Two Knights Variation, Suttles Variation B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 | 74 | |
| Anti-Modern B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qe2 | – | |
| Averbakh Variation, Pseudo-Sämisch A42 · 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Be3 Nf6 5. f3 | 4 | |
| Beefeater Variation A40 · 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 f5 | 165 | |
| Dunworthy Variation B06 · 1. e4 g6 2. d4 Bg7 3. c4 d5 4. exd5 c6 5. dxc6 Bxd4 | – | |
| Gurgenidze Defense B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 | 40 | |
| Masur Gambit B06 · 1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O | – | |
| Semi-Averbakh Variation, Pterodactyl Variation Accepted A04 · 1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. c4 c5 5. dxc5 Qa5+ | – | |
| Semi-Averbakh Variation, Pterodactyl Variation Declined B06 · 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nf3 d6 5. Be2 Qa5+ | – | |
| Two Knights Variation, Suttles Variation, Tal Gambit B06 · 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. Bg5 Qb6 6. Qd2 Qxb2 | – |