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Colle System: Rhamphorhynchus Variation A04

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1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+

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Variations of this family

NameECOMain line length
Colle System: Pterodactyl VariationA408 plies
Colle System: Siroccopteryx VariationA4010 plies