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ECO Opening Name Position YOUR GAMES!!
   
 
D40 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Tarrasch defense
3.Nc3-Nf6; 4.Nf3-c5
  1) Symmetrical variation
pos
5.e3-Nc6; 6.Bd3-Bd6; 7.O-O O-O
  2) Pillsbury variation
pos
5.Bg5
  3) Rest in D40
Rest
   
 
D41 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Tarrasch (5.cxd5) 
3.Nc3-Nf6; 4.Nf3-c5;
   
5.cxd5
  1) Kmoch variation
pos
5...Nxd5; 6.e4-Nxc3;
   
7.bxc3-cxd4; 8.cxd4-Bb4;
 
9.Bd2-Bxd2; 10.Qxd2-O-O;
      11.Bb5
  2) San Sebastian variation
pos
5... Nxd5; 6.e4-Nxc3;
 
7.bxc3-cxd4; 8.cxd4-Bb4;
      9.Bd2-Qa5
  3) 6.e3 variation
pos
5...Nxd5; 6.e3
  4) Rest in D41
Rest
 
D42 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Tarrasch (7.Bd3) 
3.Nc3-Nf6; 4.Nf3-c5;
   
5.cxd5-Nxd5; 6.e3-Nc6;
 
7.Bd3
 
Eco D42
 
D43 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav
3.Nc3-Nf6; 4.Nf3-c6
  1) Hastings variation
pos
5.Bg5-h6; 6.Bxf6-Qxf6; 7.Qb3
  2) Rest in D43
Rest
   
 
D44 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav (5.Bg5 dxc4) 
3.Nc3-Nf6; 4.Nf3-c6;
   
5.Bg5-dxc4
  1) Botvinnik system (anti-Meran)
pos
6.e4
  2) Rest in D44
Rest
   
D45 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav (5.e3) 
3.Nc3-Nf6; 4.Nf3-c6; 5.e3
  1) Stonewall defense
pos
5....Ne4; 6.Bd3-f5
  2) Accelerated Meran (Alekhine )
pos
5...a6
  3) 5...Nbd7 variation
pos
5...Nbd7
  4) Rest in D45
Rest
   
 
D46 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav (6.Bd3) 
3.Nc3-Nf6; 4.Nf3-c6;
   
5.e3-Nbd7; 6.Bd3
  1) Bogolyubov variation
pos
6...Be7
  2) Romih variation
pos
6...Bb4
  3) Chigorin defense
pos
6...Bd6
  4) Rest in D46
Rest
 
D47 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav (7.Bc4)
3.Nc3-Nf6; 4.Nf3-c6;
 
5.e3-Nbd7; 6.Bd3-dxc4;
   
7.Bxc4
  1) Meran variation
pos
7...b5
  2) Rest in D47
Rest
 
D48 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav, Meran (8...a6) 
3.Nc3-Nf6; 4.Nf3-c6;
 
5.e3-Nbd7; 6.Bd3-dxc4;
   
7.Bxc4-b5; 8.Bd3-a6
  1) Pirc variation
pos
9.e4-b4
  2) 9...c5 variation
pos
9.e4-c5
  3) Rest in D48
Rest
 
D49 Queen's gambit declined: pos 1.d4-d5; 2.c4-e6;
  semi-Slav, Meran,
3.Nc3-Nf6; 4.Nf3-c6;
  Blumenfeld variation
5.e3-Nbd7; 6.Bd3-dxc4;
   
7.Bxc4-b5; 8.Bd3-a6;
   
9.e4-c5; 10.e5-cxd4;
   
11.Nxb5
  1) Rabinovich variation
pos
11...Ng4
  2) Sozin variation
pos
11...Nxe5
  3) Rest in D49
Rest

 

 

 

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