ECO B06: Modern Defense, Pterodactyl Defense & more
ECO B06 is part of volume B, Semi-Open Games.
The Lichess chess-openings dataset files 46 named lines under it, from 3 different openings.
The shortest is Modern Defense:
1. e4 g6.
That position has come up in 47,533,808 Lichess games between players rated 1600 to 2500: White won 49.0%, 4.6% were drawn and Black won 46.4%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| Modern Defense | 1. e4 g6 |
47.5M | 1 move |
| Modern Defense | 1. e4 g6 2. d4 Bg7 |
26.7M | 2 moves |
| Modern Defense: Fianchetto Gambit | 1. e4 g6 2. d4 f5 |
29K | 2 moves |
| Modern Defense: Norwegian Defense | 1. e4 g6 2. d4 Nf6 |
474K | 2 moves |
| Modern Defense: Bishop Attack | 1. e4 g6 2. d4 Bg7 3. Bc4 |
875K | 3 moves |
| Modern Defense: Standard Line | 1. e4 g6 2. d4 Bg7 3. Nc3 |
6.4M | 3 moves |
| Modern Defense: Three Pawns Attack | 1. e4 g6 2. d4 Bg7 3. f4 |
2.7M | 3 moves |
| Modern Defense: Westermann Gambit | 1. e4 g6 2. d4 Bg7 3. Bd2 |
19K | 3 moves |
| Modern Defense: Wind Gambit | 1. e4 g6 2. d4 Bg7 3. Bd3 |
77K | 3 moves |
| Modern Defense: Bishop Attack, Bücker Gambit | 1. e4 g6 2. d4 Bg7 3. Bc4 b5 |
626 | 3 moves |
| Modern Defense: Lizard Defense, Mittenberger Gambit | 1. e4 g6 2. d4 Bg7 3. Nc3 d5 |
103K | 3 moves |
| Modern Defense: Modern Pterodactyl | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 |
753K | 3 moves |
| Modern Defense: Mongredien Defense, with Nc3 | 1. e4 g6 2. d4 Bg7 3. Nc3 b6 |
392K | 3 moves |
| Modern Defense: Mongredien Defense, with Nf3 | 1. e4 g6 2. d4 Bg7 3. Nf3 b6 |
1.2M | 3 moves |
| Modern Defense: Standard Defense | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 |
5.2M | 3 moves |
| Rat Defense: Accelerated Gurgenidze | 1. e4 g6 2. d4 d6 3. Nc3 c6 |
336K | 3 moves |
| Modern Defense: Pseudo-Austrian Attack | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 |
982K | 4 moves |
| Modern Defense: Two Knights Variation | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 |
4.4M | 4 moves |
| Pterodactyl Defense: Eastern, Anhanguera | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Be3 |
231K | 4 moves |
| Pterodactyl Defense: Eastern, Benoni | 1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5 |
211K | 4 moves |
| Pterodactyl Defense: Eastern, Rhamphorhynchus | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 |
181K | 4 moves |
| Modern Defense: Bishop Attack, Monkey's Bum | 1. e4 g6 2. Bc4 Bg7 3. Qf3 e6 4. d4 Bxd4 |
4,059 | 4 moves |
| Modern Defense: Norwegian Defense, Norwegian Gambit | 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 d6 |
23K | 4 moves |
| Modern Defense: Two Knights Variation, Suttles Variation | 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 |
713K | 4 moves |
| Pterodactyl Defense: Austrian, Austriadactylus Western | 1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+ |
849 | 4 moves |
| Pterodactyl Defense: Austrian, Grand Prix Pterodactyl | 1. e4 g6 2. Nc3 Bg7 3. f4 c5 4. Nf3 Qa5 |
644 | 4 moves |
| Pterodactyl Defense: Austrian, Pteranodon | 1. e4 g6 2. d4 Bg7 3. f4 c5 4. c3 Qa5 |
4,353 | 4 moves |
| Pterodactyl Defense: Eastern, Benoni Pterodactyl | 1. d4 g6 2. Nc3 Bg7 3. e4 c5 4. d5 Qa5 |
5,841 | 4 moves |
| Pterodactyl Defense: Eastern, Pterodactyl | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 |
71K | 4 moves |
| Pterodactyl Defense: Fianchetto, King Pterodactyl | 1. e4 g6 2. d4 Bg7 3. g3 c5 4. Nf3 Qa5+ |
25 | 4 moves |
| Pterodactyl Defense: Fianchetto, Rhamphorhynchus | 1. e4 g6 2. d4 Bg7 3. g3 c5 4. dxc5 Qa5+ |
765 | 4 moves |
| Pterodactyl Defense: Western, Anhanguera | 1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Be3 Qa5+ |
7,765 | 4 moves |
| Modern Defense: Anti-Modern | 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qe2 |
1,860 | 5 moves |
| Pterodactyl Defense: Sicilian, Siroccopteryx | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Bc4 |
3,695 | 5 moves |
| Modern Defense: Dunworthy Variation | 1. e4 g6 2. d4 Bg7 3. c4 d5 4. exd5 c6 5. dxc6 Bxd4 |
242 | 5 moves |
| Modern Defense: Gurgenidze Defense | 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 |
35K | 5 moves |
| Modern Defense: Masur Gambit | 1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O |
93 | 5 moves |
| Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined | 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nf3 d6 5. Be2 Qa5+ |
22 | 5 moves |
| Pterodactyl Defense: Central, Anhanguera | 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. Be3 Qa5 |
900 | 5 moves |
| Pterodactyl Defense: Central, Benoni Quetzalcoatlus | 1. e4 g6 2. d4 Bg7 3. c4 c5 4. d5 d6 5. Nc3 Qa5 |
9,301 | 5 moves |
| Pterodactyl Defense: Central, Quetzalcoatlus Gambit | 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5 |
2,458 | 5 moves |
| Pterodactyl Defense: Eastern, Benoni Pteranodon | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 |
3,402 | 5 moves |
| Pterodactyl Defense: Eastern, Pteranodon | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Bxc3+ 5. bxc3 Qa5 |
42K | 5 moves |
| Pterodactyl Defense: Sicilian, Quetzalcoatlus | 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6 |
92 | 5 moves |
| Pterodactyl Defense: Western, Siroccopteryx | 1. e4 g6 2. Nf3 Bg7 3. d4 c5 4. Bc4 cxd4 5. Nxd4 Qa5+ |
4,054 | 5 moves |
| Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. Bg5 Qb6 6. Qd2 Qxb2 |
781 | 6 moves |