Gruenfeld: 5.Bg5 c6

Before the first move

The Gruenfeld Defense is a dynamic counter-attacking opening where Black allows White to build a large center only to strike back with pieces. In this variation, White develops naturally with the Three Knights system, while Black uses a solid pawn structure to challenge the central tension.

1. d4White · your move

Push your pawn to d4. This move claims central space, controls the e5-square, and opens lines for your queen and dark-squared bishop. It is the foundation of most strategic queen's pawn openings.

1... Nf6Black

Black replies with Nf6, the standard entry into the Indian Defenses. By developing the knight, Black maintains flexibility. Other choices like the Englund Gambit with e5 or the solid Horwitz Defense with e6 are much less common.

Other paths here: Na6 (Australian Defense) · g5 (Borg Defense: Borg Gambit) · b6 (English Defense) · e5 (Englund Gambit)

2. c4White · your move

Push your pawn to c4. You are attacking the center from the flank and preparing to develop your knight behind the pawn. This creates the classic Queen's Gambit structure, putting immediate pressure on Black.

Other paths here: f4 (Canard Opening) · g4 (Indian Defense: Gibbins-Weidenhagen Gambit) · e4 (Indian Defense: Omega Gambit) · d5 (Indian Defense: Pawn Push Variation)

2... g6Black

Black plays g6, signaling an intention to control the center with pieces rather than pawns. You might also encounter the Nimzo-Indian with e6 or the Benoni with c5, but the fianchetto systems are very popular at all levels.

Other paths here: g5 (Indian Defense: Medusa Gambit) · b5 (Indian Defense: Pyrenees Gambit) · a6 (Indian: 2.c4 a6) · Nc6 (Mexican Defense)

3. Nc3White · your move

Develop your knight to c3. This move increases your control over the d5 and e4 squares. By placing the knight here, you are ready to meet Black's central challenge head-on.

Other paths here: d5 (Indian Defense: Anti-Grünfeld, Advance Variation) · f3 (Indian Defense: Anti-Grünfeld, Alekhine Variation) · h4 (Indian Defense: Anti-Grünfeld, Basman-Williams Attack) · g3 (King's Indian Defense: Fianchetto Variation, Immediate Fianchetto)

3... d5Black

Black plays d5, the defining move of the Gruenfeld. Unlike the King's Indian Defense where Black stays more passive, here you are fighting for the center immediately. Alternatives like d6 or c5 would lead to very different structures.

Other paths here: Bg7 (King's Indian: 3.Nc3 Bg7) · c5 (King's Indian: 3.Nc3 c5) · c6 (King's Indian: 3.Nc3 c6) · d6 (King's Indian: 3.Nc3 d6)

4. Nf3White · your move

Develop your knight to f3. This solidifies your d4 pawn and prepares for kingside castling. You are maintaining a flexible and strong presence in the center while completing your minor piece development.

Other paths here: e3 (Gruenfeld: 4.e3) · g3 (Gruenfeld: 4.g3) · g4 (Grünfeld Defense: Gibbon Gambit) · f3 (Grünfeld Defense: Lutikov Variation)

4... Bg7Black

Black completes the fianchetto with Bg7. The bishop is now perfectly placed to monitor the center. Black could have played c6 first to bolster the d5 pawn, but developing the bishop is the priority here.

Other paths here: c6 (Gruenfeld: Schlechter, 5.Qb3)

5. Bg5White · your move

Develop your bishop to g5. You are pinning the knight on f6 and putting indirect pressure on the d5 pawn. This active development forces Black to make a decision about their central structure.

Other paths here: cxd5 (Gruenfeld: Three Knights Exchange) · g3 (Gruenfeld: Three Knights, 5.g3) · Qa4+ (Grünfeld Defense: Flohr Variation) · Bf4 (Grünfeld Defense: Three Knights Variation, Hungarian Attack)

5... c6Black

Black plays c6, opting for a solid, Schlechter-style setup. This is a very reliable way to handle the pressure on d5. Black also frequently tries the sharper Ne4 or the more forcing dxc4.

Other paths here: dxc4 (Gruenfeld: 5.Bg5 dxc4) · Ne4 (Gruenfeld: 5.Bg5 Ne4)

Where you stand

The position is balanced and strategically rich. White has a space advantage and active pieces, while Black has a very solid structure and the powerful bishop on g7. White will look to increase central pressure, while Black will try to break the center with moves like c5 or e5 later.

• c3-d5 Trade on d5 to open the center
• g5-f6 Exchange the bishop for the knight
• f6-e4 Jump the knight into the center
• e2-e4 Push e4 to gain central space