Neo-Grunfeld Defence Adviser & Replay Lab

The Neo-Grünfeld Defence is the early-g3 Grünfeld family where White delays Nc3. The key signal is 1.d4 Nf6 2.c4 g6 3.g3, and the pure Grünfeld version appears when Black answers with ...d5. Start with the Neo-Grünfeld Signal diagram.

Yes, 3.g3 is the setup signal, but ...d5 is what makes it a Grünfeld-family defence. Without ...d5, the game may become a King's Indian, Benoni, or English-style fianchetto position. Use the Kemeri / ...d5 diagram to see the precise Grünfeld trigger.

The Kemeri Variation is the common Neo-Grünfeld move order 1.d4 Nf6 2.c4 g6 3.g3 d5. White delays Nc3, so Black does not get the usual early target on c3. Use the Kemeri / ...d5 diagram before studying the D72-D79 replays.

White delays Nc3 to keep the queen's knight flexible and avoid some direct Grünfeld pressure against c3 and d4. The delay can support Nf3, Bg2, cxd5, e4, or even Benoni-style structures depending on Black's choice. Use the Neo-Grünfeld Signal diagram to remember the move-order point.

Black plays ...d5 to turn White's fianchetto setup into a Grünfeld-family centre fight. The move challenges d4 before White decides whether the knight belongs on c3, d2, or f3. Use the Kemeri / ...d5 diagram to anchor Black's plan.

A main line is 1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5 5.cxd5 Nxd5. White can then play e4, Nf3, or other development plans while Black decides how to counter the centre. Use the cxd5 Nxd5 diagram before opening the replay lab.

White's e4 centre plan appears after cxd5 Nxd5 and an early e4. White gains space, but Black has counterplay with ...Nb6, ...c5, ...e6, or piece pressure against d5 and c4. Use the e4 Centre diagram before replaying Leko vs Topalov.

The ...c6 and ...d5 setup is a Slav-Grünfeld hybrid where Black supports the centre before clarifying the pawn structure. It often appears after 1.d4 Nf6 2.c4 g6 3.g3 c6 4.Bg2 d5. Use the ...c6 and ...d5 diagram before replaying Mamedyarov vs Svidler or Nakamura vs Aronian.

The ...c5 lines are related early-g3 move-order tests rather than pure ...d5 Neo-Grünfeld positions. They often transpose toward Benoni or Symmetrical English structures while still punishing White's delayed Nc3 choices. Use the ...c5 Overlap diagram before replaying Kramnik vs Radjabov or Grischuk vs Caruana.

The normal Grünfeld usually has White's knight already on c3, while the Neo-Grünfeld delays that commitment with g3. This changes the pressure points because Black cannot immediately build the same attacks against Nc3 and d4. Compare the Neo-Grünfeld Signal diagram with the broader Grunfeld Defence map.

The King's Indian Fianchetto usually centres on ...d6 and ...e5 or ...c5, while the pure Neo-Grünfeld is defined by ...d5. Some games in the replay lab overlap because early-g3 move orders allow both Black setups. Use the Replay Lab optgroups to separate pure ...d5 games from related fianchetto tests.

Karpov vs Kamsky shows an early-g3 fianchetto game where White delays central clarification and later wins a long strategic battle. It is more King's Indian overlap than pure ...d5 Neo-Grünfeld, so it is included as a move-order warning. Load Karpov vs Kamsky from the related fianchetto group.

Leko vs Topalov shows a pure ...d5 Neo-Grünfeld centre with cxd5 Nxd5 and e4. Black's counterplay with ...c5, ...e6, and active bishops punishes White's inaccurate handling. Load Leko vs Topalov after the e4 Centre diagram.

Mamedyarov vs Nepomniachtchi shows the Neo-Grünfeld cxd5 Nxd5 family with Bf4 and restrained central pressure. White's repeated piece pressure eventually keeps Black tied down. Load Mamedyarov vs Nepomniachtchi from the pure ...d5 replay group.

Mamedyarov vs Svidler shows the ...c6 and ...d5 hybrid where White's central breaks arrive after a slow manoeuvring phase. It is useful because the delayed Nc3 gives White extra flexibility. Load Mamedyarov vs Svidler after the ...c6 and ...d5 diagram.

Nakamura vs Aronian shows Black's counterplay in the ...c6 and ...d5 hybrid. The game demonstrates that White's delayed Nc3 setup can still become tactically vulnerable if Black activates quickly. Load Nakamura vs Aronian from the hybrid replay group.

Kramnik vs Radjabov shows a high-level early-g3 ...c5 move-order battle. It is not a pure ...d5 Neo-Grünfeld, but it teaches how Black can avoid Kemeri structures and challenge White immediately. Load Kramnik vs Radjabov from the related fianchetto group.

Grischuk vs Caruana shows a ...c5 overlap where Black sacrifices and activates on the queenside. It is a warning that early g3 does not guarantee a quiet fianchetto game. Load Grischuk vs Caruana from the ...c5 overlap group.

Gelfand vs Svidler shows how early-g3 move orders can become Svidler-style active counterplay rather than a pure Grünfeld. Black uses piece activity and queenside pressure to win. Load the Gelfand vs Svidler games from the related fianchetto group.

The Neo-Grünfeld is good for White if the aim is flexibility and reduced early contact on Nc3. White must still understand ...d5, ...c6, and ...c5 reactions because Black can choose the structure. Use the Adviser with White selected to choose a branch.

The Neo-Grünfeld is good for Black if Black understands the delayed-Nc3 differences. Black should not play normal Grünfeld moves blindly, because White's knight flexibility changes the tactical targets. Use the Adviser with Black selected before choosing a replay.

The Neo-Grünfeld can reduce some mainline Exchange theory, but it is not theory-free. The theory shifts into move orders, transpositions, and structural decisions around ...d5, ...c6, and ...c5. Use the six diagrams as the compact memory map.

A common White mistake is assuming early g3 makes the position automatically quiet. Black can still break with ...d5, ...c5, ...e5, or queenside activity depending on the move order. Use the ...c5 Overlap diagram before playing the system casually.

A common Black mistake is treating the position like a normal Grünfeld with Nc3 already committed. White may keep the knight flexible and use e4, Nf3, or cxd5 plans at better moments. Use the Neo-Grünfeld Signal diagram to check the move-order difference.

Black should choose ...d5 for a pure Neo-Grünfeld and ...c5 for a related fianchetto/Benoni-style test. The choice changes the whole page map, so it should match the player's repertoire. Use the Kemeri / ...d5 and ...c5 Overlap diagrams side by side.

White often plays cxd5 when Black has committed to ...d5 and the centre can be clarified favourably. The resulting Nxd5 positions test whether White's Bg2 and delayed Nc3 create useful pressure. Use the cxd5 Nxd5 diagram before loading a pure ...d5 replay.

White can play e4 in some Neo-Grünfeld lines to seize space, especially after cxd5 Nxd5. The move is ambitious because Black can answer with ...Nb6, ...c5, ...e6, or piece pressure against the centre. Use the e4 Centre diagram before replaying Leko vs Topalov.

Study the Neo-Grünfeld in 20 minutes by reviewing the signal diagram, the Kemeri diagram, one pure ...d5 replay, and one ...c5 overlap replay. That gives the main identity and the key transposition warning. Use Leko vs Topalov and Kramnik vs Radjabov as the first pair.

Watch Leko vs Topalov first if you want the pure ...d5 Neo-Grünfeld centre. Watch Kramnik vs Radjabov first if you want the early-g3 move-order battle against ...c5. Use the Replay Lab optgroups to choose the correct family.

The main takeaway is that early g3 delays Nc3 and changes Black's normal Grünfeld targets. The pure Neo-Grünfeld needs ...d5, while ...c5 and ...d6 games are related move-order tests. Use the Adviser to connect your side to the right diagram and replay.