D02-D69

Queen's Gambit Declined

200 named lines in this family, ECO D02-D69. Under each line you get its moves and the sentences it adds that this page has not already printed; sixty lines to a page. A line's own page carries up to its first 4 per-move notes in full.

Alekhine VariationD51

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e4

The pawns on d5 and e4 stand in direct tension - the first player to resolve it chooses the structure. ...e6 holds d5 at the cost of the c8-bishop's freedom: Black plays the most solid structure in chess and times ...c5 or ...dxc4 to free the game.

• 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
• 1... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.
• 2. c4 Challenges the pawn on d5 - the central tension has to resolve. The pawn is genuinely on offer - this is the Queen's Gambit: development and initiative over material.
• 2... e6 Supports the centre, adding control of d5. Theory calls this the Queen's Gambit Declined.

Capablanca Variation, Anti-Cambridge Springs VariationD51

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. a3

Rochlin VariationD51

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. Rc1 Qa5 7. Bd2

Main line, after 2... c6, through 6. e3D52

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3

• 2... c6 Fights for d5 from the flank - contesting the centre without committing a centre pawn. Theory calls this the Slav Defense.

Cambridge Springs Defense, through 6... Qa5D52

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5

White's knight on c3 is pinned against the king.

Cambridge Springs Defense, after 7. cxd5D52

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5

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.

Cambridge Springs Defense, Capablanca VariationD52

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Bxf6

Cambridge Springs Defense, Rubinstein VariationD52

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 dxc4

Black has doubled pawns on the c-file.

Cambridge Springs Defense, Yugoslav VariationD52

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5

Cambridge Springs Defense, Bogoljubow VariationD52

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2

Cambridge Springs Defense, Argentine VariationD52

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Bh4

Main line, after 2... e6, through 4... Be7D53

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7

Main line, after 2... e6, through 5. Nf3D53

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3

Modern Variation, Heral VariationD53

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6

Lasker Defense, after 1... Nf6, through 5... Ne4D53

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 Ne4

• 1... Nf6 Develops the knight to f6, eyeing d5 and e4.

Main line, after 2... e6, through 5... Be7D53

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. Bg5 Be7

Black keeps the extra pawn; White plays for time, open lines, and initiative - the classic gambit trade.

Main line, after 2... e6, through 6. e4D53

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. Bg5 Be7 6. e4

Main line, after 2... e6, through 6... O-OD53

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nc6 5. Bg5 Be7 6. e3 O-O

Main line, after 2... e6, through 7. Bxc4D53

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 c6 6. e3 dxc4 7. Bxc4

Uhlmann VariationD53

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. Rc1 dxc4

Neo-Orthodox Variation, after 3. Nc3D54

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1

Modern Variation, Normal LineD55

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3

Neo-Orthodox Variation, after 3. Nf3D55

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6

Anti-Tartakower VariationD55

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bxf6

Neo-Orthodox Variation, Main LineD55

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3

Pillsbury AttackD55

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 Be7 7. e3 O-O 8. Bd3 Bb7 9. Ne5

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

Anti-Tartakower Variation, Petrosian VariationD55

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4

Black comes out of the line with the bishop pair.

Lasker Defense, after 1... d5, through 7... Ne4D56

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4

Main line, after 2... e6, through 8. Bh4D56

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nc6 5. Bg5 Be7 6. e3 O-O 7. Rc1 h6 8. Bh4

Lasker Defense, after 1... d5, through 8... Ne4D56

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nc6 5. Bg5 Be7 6. e3 O-O 7. Rc1 h6 8. Bh4 Ne4

Lasker Defense, Teichmann VariationD56

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2

Lasker Defense, Russian VariationD56

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 Nf6 10. Bd3 dxc4 11. Bxc4 c5 12. O-O Nc6 13. Rfd1 Bd7

Lasker Defense, Main LineD57

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3

An early pawn trade leaves the b-file as White's avenue and the d-file as Black's - both sides get real winning chances down their own file. White is up material out of the opening - Black is banking on activity to show for it.

Lasker Defense, Bernstein VariationD57

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Qd6

An early pawn trade leaves the b-file as White's avenue and the e-file as Black's - both sides get real winning chances down their own file.

Lasker Defense, Bernstein Variation, Mar del Plata GambitD57

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Rd8 12. c4 Be6

Tartakower Defense, after 1... Nf6D58

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6

Tartakower Defense, Exchange VariationD58

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 exd5

Tartakower Defense, Makogonov Exchange VariationD59

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5

Tartakower Defense, after 1... d5D59

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Rc1 Be6

Orthodox DefenseD60

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7

Orthodox Defense, Botvinnik Variation, through 7. Bd3D60

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3

Orthodox Defense, Rauzer VariationD60

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qb3

• 2. Nf3 Develops the knight to f3, eyeing d4 and e5. It also props up the d4 pawn. Theory calls this the Zukertort Variation.
• 2... Nf6 It also props up the d5 pawn. Theory calls this the Symmetrical Variation.

Orthodox Defense, Botvinnik Variation, after 7... c6D60

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3 c6

Orthodox Defense, Rubinstein Variation, through 7. Qc2D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2

Orthodox Defense, Rubinstein Variation, after 7... c5, through 7... c5D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c5

Orthodox Defense, Rubinstein Variation, after 7... c6, through 7... c6D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c6

Orthodox Defense, Rubinstein Variation, after 7... c6, through 8. a3D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c6 8. a3

Orthodox Defense, Rubinstein Variation, after 7... c6, through 8... a6D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c6 8. Rd1 a6

Orthodox Defense, Rubinstein Variation, after 7... a6, through 9... Re8D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 a6 8. cxd5 exd5 9. Bd3 Re8

Orthodox Defense, Rubinstein Variation, Flohr LineD62

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 c5 8. cxd5

White has doubled pawns on the d-file.

Orthodox Defense, Main Line, after 1... Nf6, through 7. Rc1D63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1

Orthodox Defense, Henneberger Variation, through 7... a6D63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6

Orthodox Defense, Main Line, after 1... Nf6, through 7... c6D63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6

Orthodox Defense, Henneberger Variation, after 8. c5, through 8. c5D63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. c5

Orthodox Defense, Swiss, Carlsbad VariationD63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd5

Orthodox Defense, Henneberger Variation, after 8. c5, through 8... c6D63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. c5 c6

Orthodox Defense, Main Line, after 1... d5, through 8... c5D63

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 O-O 7. Rc1 h6 8. Bh4 c5

Orthodox Defense, Capablanca VariationD63

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bb5

• 1. Nf3 Theory calls this the Zukertort Opening.

Orthodox Defense, Henneberger Variation, after 8. c5, through 9. Bd3D63

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. c5 c6 9. Bd3

Orthodox Defense, Pillsbury VariationD63

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bd3

Lines 121–180 of 200 — page 3 of 4.

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