Modern Defense: Averbakh System

A42 Flank openings 7 moves

1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4

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The Modern Defense: Averbakh System is a chess opening classified under ECO code A42 (Flank openings). 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.