Openings Guide / 1.d4 — Closed and Semi-Closed Games
1.d4 Nf6 2.c4 g6 3.Nc3 d5
The Grünfeld Defense is a dynamic and counterattacking opening where Black allows White to build a large center and then attacks it directly with ...c5 and piece pressure. It was Kasparov's key weapon against Karpov in their World Championship matches and remains a top choice today.
The Grünfeld exchange variation (4.cxd5 Nxd5 5.e4) is the critical test, where White builds a massive central presence. Black fights back with ...c5, ...Bg7, ...Nc6, and massive piece activity to compensate for the pawn center. Magnus Carlsen and Hikaru Nakamura regularly employ the Grünfeld as a dynamic weapon.
| Variation | Moves |
|---|---|
| Exchange Variation | 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 |
| Russian System | 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 |
| Taimanov Variation | 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 |