Chess-Theory , links, openings, eco codes, analysed games, base

OPENINGS THEORY
- ECO CODES BASE -

- D44 -

[D44-a] - QGD:
semi-Slav, 5.Bg5 dxc4
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4

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[D44-b] - QGD:
semi-Slav, 5.Bg5 dxc4
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e3

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[D44-c] - QGD:
semi-Slav, 5.Bg5 dxc4
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e3 b5

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[D44-d] - QGD:
semi-Slav, 5.Bg5 dxc4
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.a4

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[D44-e] - QGD:
semi-Slav, 5.Bg5 dxc4
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.a4 Bb4

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[D44-f] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4

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[D44-g] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.Qc2

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[D44-h] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.a4 b4

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[D44-i] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.a4 Bb4

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[D44-j] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.a4 Bb4 8.e5 h6

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[D44-k] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.a4 Qb6

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[D44-l] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.a4 Qb6 (UM: (unpin move))
8.Bxf6 gxf6

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[D44-m] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
7.e5 variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM: (forced move)) (8.Bh4)

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[D44-n] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
7.e5 variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM: (forced move)) 8.Bh4
g5 9.Bg3 Nd5 =/unclear

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[D44-o] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Ekstrom variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.exf6
gxh4 10.Ne5

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[D44-p] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Ekstrom variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.exf6
gxh4 10.Ne5 Qxf6 11.g3 Nd7
(WC: (with compensation))

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[D44-q] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Ekstrom variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.exf6
gxh4 10.Ne5 Qxf6 11.Be2
(WC: (with compensation))

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[D44-r] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Ekstrom variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.exf6
gxh4 10.Ne5 Qxf6 11.a4
(WC: (with compensation))

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[D44-s] - QGD:
semi-Slav, anti-Meran gambit
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5

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[D44-t] - QGD:
semi-Slav, anti-Meran gambit
Alatortsev system
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5
Nd5?!

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[D44-u] - QGD:
semi-Slav, anti-Meran gambit
Alatortsev system
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5
Nd5?! 10.Nf3 Qa5

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[D44-v] - QGD:
semi-Slav, anti-Meran gambit
Alatortsev system
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5
Nd5?! 10.Nxf7 Qxh4 (FM) 11.Nxh8
(FM) Bb4 12.Qd2 +/=

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[D44-w] - QGD
semi-Slav, anti-Meran,
Szabo variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.Qf3

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[D44-x] - QGD:
semi-Slav, anti-Meran,
Lilienthal variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.g3

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[D44-y] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6

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[D44-z] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7

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[D44-a*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3

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[D44-b*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3
c5 13.d5 (FM) Qb6

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[D44-c*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3
c5 13.d5 (FM) Qb6 14.Bg2

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[D44-d*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Denker variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3
c5 13.d5 (FM) Qb6 14.Bg2 0-0-0
15.0-0 b4 16.Na4 Qb5 17.a3

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[D44-e*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3 Qb6
(UM:(unpin move))

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[D44-f*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3 Qb6
(UM:(unpin move)) 13.Bg2 c5 14.d5
0-0-0 15.0-0 b4

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[D44-g*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Denker variation, main line
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3 Qb6
(UM:(unpin move)) 13.Bg2 c5 14.d5
0-0-0 15.0-0 b4 16.Na4 Qb5
17.a3 Nb8! (WI: Nc6) 18.axb4 cxb4
19.(Qg4)

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[D44-h*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Denker variation, main line
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3 Qb6 (UM: (unpin move)) 13.Bg2 c5 14.d5
0-0-0 15.0-0 b4 16.Na4 Qb5
17.a3 Nb8! (WM: (with menace)) 18.axb4 cxb4 19.Qg4 Bxd5 20.Rfc1

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[D44-i*] - QGD:
semi-Slav, 5.Bg5 dxc4
Botvinnik system (anti-Meran)
Denker variation, main line
1.d4 d5 2.c4 e6 3.Nc3 Nf6
4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
7.e5 h6 (FM) 8.Bh4 g5 9.Nxg5 hxg5
10.Bxg5 Nbd7 11.exf6 Bb7 12.g3 Qb6 (UM:(unpin move)) 13.Bg2 c5 14.d5
0-0-0 15.0-0 b4 16.Na4 Qb5
17.a3 exd5 18.axb4 cxb4 (unclear)

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