Pterodactyl Defence
MICOS Opening Group B07.PT – Pterodactyl Defence begins with 1.e4 g6 2.d4 Bg7 3.Nc3 c5, combining hypermodern development with an immediate challenge to White’s centre. By playing …c5, Black creates early imbalance and seeks active counterplay rather than occupying the centre directly.
The Pterodactyl Defence can produce unusual positions with active queen play, unconventional piece development and sharp tactical possibilities. Its distinctive character makes it an option for players who want to move away from more familiar opening patterns and create complex positions from an early stage. Use the searchable table below to find openings by opening name, chess notation or MICOS code and train individual openings interactively with MICOS CAP.
Search by Opening Name, Chess Notation or MICOS Code. MICOS classifies each opening by its exact move order.
| Opening Name | Chess Notation | MICOS Code | MICOS CAP |
|---|---|---|---|
| Pterodactyl Defence | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 | B07.001.PT | |
| Eastern Benoni: Anhanguera | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Be3 | B07.002.PT | Explore ▶ |
| Eastern Benoni | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.d5 | B07.003.PT | Explore ▶ |
| Eastern Benoni: Pteranodon Defence: 5…Qa5 | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.d5 Bxc3+ 5.bxc3 Qa5 | B07.004.PT | Explore ▶ |
| Eastern Benoni: Pterodactyl Defence: 4…Qa5 | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.d5 Qa5 | B07.005.PT | Explore ▶ |
| Eastern Rhamporhynchus | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 | B07.006.PT | Explore ▶ |
| Eastern Pteranodon | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Bxc3+ 5.bxc3 Qa5 | B07.007.PT | Explore ▶ |
| Sicilian Defence: Pteranodon Attack | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Bxc3+ 5.bxc3 Qa5 6.Nf3 | B07.008.PT | Explore ▶ |
| Eastern Pterodactyl | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Qa5 | B07.009.PT | Explore ▶ |
| Sicilian Defence | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 | B07.010.PT | Explore ▶ |
| Sicilian Defence: Siroccopteryx Attack | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Bc4 | B07.011.PT | Explore ▶ |
| Sicilian Defence: Unpin | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Bd2 | B07.012.PT | Explore ▶ |
| Sicilian Defence: Quetzalcoatlus Defence | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Be2 d6 | B07.013.PT | Explore ▶ |
| Sicilian Defence: Anhanguera Attack | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Be3 | B07.014.PT | Explore ▶ |
| Sicilian Defence: Benoni Gambit | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.d5 | B07.015.PT | Explore ▶ |
| Sicilian Defence: Rhamporhynchus Attack | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.dxc5 | B07.016.PT | Explore ▶ |
| Sub Groups | Chess Notation | MICOS CAP |
|---|---|---|
| Pterodactyl Defence (B07.PT) | ||
| 67. Sicilian Defence (Minor Sub Group) | 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 | B07.010.PT 🖥️ |
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