OPENINGS THEORY
- ECO CODES BASE -

- D43 -

[D43-a] - QGD: semi-Slav 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6

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[D43-b] - QGD: semi-Slav, 5.Qd3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qd3

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[D43-c] - QGD: semi-Slav, 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3

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[D43-d] - QGD: semi-Slav, 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3 Be7

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[D43-e] - QGD: semi-Slav 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3 Be7 6.Bg5

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[D43-f] - QGD: semi-Slav 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3 Be7 6.Bg5 dxc4 7.Qxc4 0-0

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[D43-g] - QGD: semi-Slav, 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3 Nbd7

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[D43-h] - QGD: semi-Slav, 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3 dxc4

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[D43-i] - QGD: semi-Slav, 5.Qb3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Qb3 dxc4 6.Qxc4 b5 (OIQS: (opposite initiatives on Queen's side ))

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[D43-j] - QGD: semi-Slav, 5.Bg5 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5

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[D43-k] - QGD: semi-Slav, 5.Bg5 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6

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[D43-l] - QGD: semi-Slav, 5.Bg5 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bh4

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[D43-m] - QGD: semi-Slav, 6.Bxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6

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[D43-n] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6

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[D43-o] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e4 (dxe4)

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[D43-p] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e4 dxe4 8.Nxe4 Bb4+ 9.Ke2 (CK: (centralized King)) (Qd8)

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[D43-q] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e4 dxe4 8.Nxe4 Bb4+ 9.Ke2 (CK: (centralized King)) Qf4! (SP)

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[D43-r] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e4 dxe4 8.Nxe4 Bb4+ 9.Ke2 (CK) Qf4! (SP) 10.Qd3 0-0 11.g3 (Qc7)

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[D43-s] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e4 dxe4 8.Nxe4 Bb4+ 9.Ke2 (CK) Qf4! (SP) 10.Qd3 0-0 11.g3 Qc7 12.Bg2 Be7 =/+

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[D43-t] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.a3

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[D43-u] - QGD: semi-Slav, 6.Bxf6 Qxf6 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.a3 dxc4

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[D43-v] - QGD: semi-Slav, Hastings variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3 (QAOS: (Queens' attack on opposite sides)) dxc4 8.Qxc4

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[D43-w] - QGD: semi-Slav, Hastings variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3 (QAOS: (Queens' attack on opposite sides)) dxc4 8.Qxc4 Nd7 9.Rd1 (WICE: (White initiative on the centre))

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[D43-x] - QGD: semi-Slav, Hastings variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3 (QAOS: (Queens' attack on opposite sides)) Nd7

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[D43-y] - QGD: semi-Slav, Hastings variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3 (QAOS: (Queens' attack on opposite sides)) a5

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[D43-z] - QGD: semi-Slav, Hastings variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3 (QAOS: (Queens' attack on opposite sides)) a5 8.e4 dxe4 9.Nxe4 Bb4+ 10.Kd1 (CK: (centralized King)) Qf4 +/= (BDDS: (Black's domination of the dark squares))

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[D43-a*] - QGD: semi-Slav, Fianchetto variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.g3

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[D43-b*] - QGD: semi-Slav, Fianchetto variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.g3 Bb4

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[D43-c*] - QGD: semi-Slav, Fianchetto variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.g3 Qd8

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[D43-d*] - QGD: semi-Slav, Fianchetto variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.g3 Nd7

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[D43-e*] - QGD: semi-Slav, Fianchetto variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.g3 Nd7 8.Bg2 (Bb4)

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[D43-f*] - QGD: semi-Slav, Fianchetto variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.g3 Nd7 8.Bg2 Bb4 9.Qb3 Qe7

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[D43-g*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3

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[D43-h*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7

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[D43-i*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.a3

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[D43-j*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 (Qd8)

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[D43-k*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 Qd8 (SW: (strategic withdrawal)) 9.0-0 Be7

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[D43-l*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 Qd8 (SQBH: (strategic Queen back home)) 9.0-0 Be7 10.Rc1 0-0 +/=

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[D43-m*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Bd6

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[D43-n*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Bd6 8.Bd3

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[D43-o*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Bd6 8.Bd3 Qe7

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[D43-p*] - QGD: semi-Slav, 7.e3 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Bd6 8.Bd3 Qe7 9.0-0 Nd7

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[D43-q*] - QGD: semi-Slav, 7.Qc2 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qc2 (SP: (strategic position))

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[D43-r*] - QGD: semi-Slav, 7.Qc2 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qc2 (SP) Nd7

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[D43-s*] - QGD: semi-Slav, 7.Qc2 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qc2 (SP) Nd7 8.e4 dxe4 9.Qxe4

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[D43-t*] - QGD: semi-Slav, 7.Qc2 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qc2 (SP) Nd7 8.e4 dxe4 9.Qxe4 Bd6 10.Bd3 +/=

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[D43-u*] - QGD: semi-Slav, 7.Qc2 variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qc2 (SP) dxc4 (8.e3 b5)

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