B07
Modern Defense: Geller's System
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3
The Modern Defense: Geller's System is a chess opening classified under ECO code B07. It is reached after the moves 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3.
It belongs to the Modern Defense 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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