D70-D79

Neo-Grünfeld Defense

16 named lines in this family, ECO D70-D79. Under each line you get its moves and the sentences it adds that this page has not already printed. A line's own page carries up to its first 4 per-move notes in full.

Goglidze AttackD70

1. d4 Nf6 2. c4 g6 3. f3 d5

In the centre, White holds d4 while Black holds d5.

• 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
• 1... Nf6 Develops the knight to f6, eyeing d5 and e4.
• 2. c4 Fights for d5 from the flank - contesting the centre without committing a centre pawn.
• 2... g6 Prepares the fianchetto: the bishop will take the long diagonal via g7. Theory calls this the West Indian Defense.

with Nf3D70

1. d4 Nf6 2. c4 g6 3. Nf3 d5

with g3, through 3... d5D70

1. d4 Nf6 2. c4 g6 3. g3 d5

Exchange Variation, after 1. d4D71

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5

An early pawn trade leaves the c-file as White's avenue and the d-file as Black's - both sides get real winning chances down their own file. White's kingside bishop takes the long diagonal and Black's kingside bishop takes the long diagonal.

Exchange Variation, after 1. c4D71

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. cxd5 Nxd5 6. Nf3

• 1. c4 Theory calls this the English Opening.
• 1... Nf6 Theory calls this the Anglo-Indian Defense.
• 2. g3 Prepares the fianchetto: the bishop will take the long diagonal via g2.

with g3, after 4. Bg2, through 7. Ne2D72

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2

with g3, after 4. Bg2, through 5. Nf3D73

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3

Delayed Exchange Variation, after 2. c4, through 7. O-OD74

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O

Delayed Exchange Variation, after 2. c4, through 8. O-OD75

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O

Delayed Exchange Variation, after 2. Nf3, through 8. dxc5D75

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. dxc5

The structure hands Black the half-open c-file - rook pressure down it is a standing plan. White is up material out of the opening - Black is banking on activity to show for it.

• 2. Nf3 Develops the knight to f3, eyeing d4 and e5. It also props up the d4 pawn. Theory calls this the Knights Variation.
• 2... g6 Theory calls this the East Indian Defense.

Delayed Exchange Variation, after 2. c4, through 7... Nb6D76

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb6

Classical VariationD77

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4

Classical Variation, Modern DefenseD77

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4

Black comes out ahead on material - White needs concrete play to justify it.

Classical Variation, Polgar VariationD77

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 Nc6

Classical Variation, Original DefenseD78

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5

Ultra-Delayed Exchange VariationD79

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5

The c-file is fully open.

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