Colle System: Pterodactyl Variation A40
Family: Colle System · basic page
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1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+
- Position after 8 half-moves — White to move.
- Material is balanced.
- Family “Colle System” contains 3 recorded variation(s) here.
Variations of this family
| Name | ECO | Main line length |
|---|---|---|
| Colle System: Rhamphorhynchus Variation | A04 | 8 plies |
| Colle System: Siroccopteryx Variation | A40 | 10 plies |