Modern Defense: Geller's System

1.
1. e4
2. g6
2.
3. d4
4. Bg7
3.
5. Nf3
6. d6
4.
7. c3

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The Modern Defense: Geller's System is a chess opening classified under ECO code B07 (Semi-Open games). It is a variation of the Modern Defense family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.