ECO E60 · Grünfeld Defense
Grünfeld Defense: Counterthrust Variation
The position after 1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5.
1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5
Grünfeld Defense: Counterthrust Variation is filed under ECO E60, a variation of Grünfeld Defense. It is the position after 1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5 — 8 half-moves in, with White to move. Named theory ends here; beyond this the position is yours to work out.