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A048 plies · white to move
Colle System: Rhamphorhynchus Variation
The Colle System: Rhamphorhynchus Variation is a chess opening classified under ECO code A04 in the Flank Openings family, characterized by moves like 1.c4, 1.Nf3, or 1.f4, aiming to control the center indirectly. It is reached after 4 moves: 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+. The resulting position leaves white to move.
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Resulting Position
Moves
1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+
Resulting Position (FEN)
rnb1k1nr/pp1pppbp/6p1/q1P5/8/4PN2/PPP2PPP/RNBQKB1R w KQkq - 1 51
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Resulting Position