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1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 dxc4 · ECO D77
Neo-Grünfeld Defense: Classical Variation, Modern Defense is a chess opening that arises after 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 dxc4. It is classified D77 in the ECO system, and the position after these moves has white to move.
This line is a variation within the Neo-Grünfeld Defense family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 dxc4.