OPENINGS THEORY
- ECO CODES BASE -

- D89 -



[D89-a] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))


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[D89-b] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Bd7 14.Rb1 +/= (see D88)


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[D89-c] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6


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[D89-d] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediateBishops' formation))
Be6 14.Qa4


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[D89-e] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.Qa4 a6


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[D89-f] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.Rc1 (OF)


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[D89-g] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
intermediate Bishops' formation))
Be6 14.Rc1 (OF) Bxa2 =/unclear


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[D89-h] - Grunfeld:
Spassky variation,
main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.Rc1 (OF) Bxa2 15.d5
Bb3 =/unclear


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[D89-i] - Grunfeld:
exchange, Sokolsky variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.d5


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[D89-j] - Grunfeld:
exchange, Sokolsky variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.d5 Bxa1


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[D89-k] - Grunfeld:
exchange, Sokolsky variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.d5 Bxa1 15.Qxa1 (FM:
(forced move))


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[D89-l] - Grunfeld:
exchange, Sokolsky variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.d5 Bxa1 15.Qxa1 (FM:
(forced move)) f6


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[D89-m] - Grunfeld:
exchange, Sokolsky variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5
4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
7.Bc4 0-0 8.Ne2 c5 9.0-0 Nc6
10.Be3 cxd4 11.cxd4 Bg4 (CP=d4)
12.f3 Na5!? 13.Bd3 (IBF:
(intermediate Bishops' formation))
Be6 14.d5 Bxa1 15.Qxa1 (FM:
(forced move)) f6 16.Qd4 (SP:
(strategic position)) =/unclear


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