OPENINGS THEORY
- ECO CODES BASE -


- D34 -



[D34-a] - QGD: Tarrasch,
Prague variation, 7...Be7
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7


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[D34-b] - QGD: Tarrasch,
Prague variation, 7...Be7
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0


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[D34-c] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0


1. «»
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[D34-d] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.a3


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[D34-e] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bf4


1. «»
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[D34-f] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.b3


1. «»
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[D34-g] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.b3 Bg4


1. «»
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[D34-h] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.b3 Bg4
10.dxc5 Bxc5


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[D34-i] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.b3 Bg4
10.dxc5 Bxc5 11.Bb2 (a1-h8=CD:
(critical diagonal)): Re8 (OF)


1. «»
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[D34-j] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.b3 Ne4


1. «»
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[D34-k] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Be3


1. «»
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[D34-l] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Be3 Ng4


1. «»
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[D34-m] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Be3 c4


1. «»
«»


[D34-n] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Be3 c4
10.Ne5


1. «»
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[D34-o] - QGD: Tarrasch,
Prague variation, Normal position
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Be3 c4
10.Ne5 h6


1. «»
«»


[D34-p] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5


1. «»
«»


[D34-q] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5


1. «»
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[D34-r] - QGD: Tarrasch,
Reti variation
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Na4 !?


1. «»
«»


[D34-s] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP: (dynamic
isolated central pawn))


1. «»
«»


[D34-t] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Ne4 Be7


1. «»
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[D34-u] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6


1. «»
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[D34-v] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6 Qxf6


1. «»
«»


[D34-w] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6 Qxf6
12.Nd5 (MWA: (moving with attack))


1. «»
«»


[D34-x] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6 Qxf6
12.Nd5 (MWA) Qd8
13.Nd2 (or Ne1!?)


1. «»
«»


[D34-y] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6 Qxf6
12.Nd5 (MWA) Qd8 13.Nd2 a6


1. «»
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[D34-z] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6 Qxf6
12.Nd5 (MWA) Qd8 13.Nd2 Re8 (OF)


1. «»
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[D34-a*] - QGD: Tarrasch,
Prague variation, Normal
position, 9.dxc5 line
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.dxc5 Bxc5
10.Bg5 d4 (DICP) 11.Bxf6 Qxf6
12.Nd5 (MWA) Qd8 13.Nd2 Re8 (OF)
14.Rc1 (OF) Bb6 =


1. «»
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[D34-b*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5


1. «»
«»


[D34-c*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 Be6


1. «»
«»


[D34-d*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 Be6
10.Rc1


1. «»
«»


[D34-e*] - QGD: Tarrasch,
Stoltz variation
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 Be6
10.Rc1 b6


1. «»
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[D34-f*] QGD: Tarrasch,
Bogolyubov variation
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 Be6
10.Rc1 c4! (ACP: (Advanced
candidat pawn))


1. «»
«»


[D34-g*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 c4 (ACP)


1. «»
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[D34-h*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4


1. «»
«»


[D34-i*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 Re8 (OF)


1. «»
«»


[D34-j*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6


1. «»
«»


[D34-k*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF)


1. «»
«»


[D34-l*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF)
12.Rc1 (OF)


1. «»
«»


[D34-m*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF)
12.Rc1 (OF) Bf8 (BRT:
(bishop rook transfer))


1. «»
«»


[D34-n*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF)
12.Qc2 (OF+FD) (b1-h7=FD:
(free diagonal))


1. «»
«»


[D34-o*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF) 12.Qb3
(AOIP: (attack on the isolated pawn))


1. «»
«»


[D34-p*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF)
12.Qa4


1. «»
«»


[D34-q*] QGD: Tarrasch,
Prague variation, 9.Bg5
1.d4 d5 2.c4 e6 3.Nc3 c5
4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
7.Bg2 Be7 8.0-0 0-0 9.Bg5 cxd4
10.Nxd4 h6 11.Be3 Re8 (OF)
12.a3


1. «»
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