D00
Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit
1. d4 d5 2. Bf4 c5 3. e4
The Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit is a chess opening classified under ECO code D00. It is reached after the moves 1. d4 d5 2. Bf4 c5 3. e4.
It belongs to the Queen's Pawn Game family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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