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

OPENINGS THEORY
- ECO CODES BASE -

- C81 -

[C81-a] - Ruy Lopez:
open, Keres-Howell attack
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2

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[C81-b] - Ruy Lopez:
open, Keres-Howell attack
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7

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[C81-c] - Ruy Lopez:
open, Keres-Howell attack,
Adam variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.c4

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[C81-d] - Ruy Lopez:
open, Keres-Howell attack
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1

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«»

[C81-e] - Ruy Lopez:
open, Keres-Howell attack
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 Nc5

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[C81-f] - Ruy Lopez:
open, Keres-Howell attack,
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0

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«»

[C81-g] - Ruy Lopez:
open, Keres-Howell attack,
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0 11.c4 bxc4 12.Bxc4

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«»

[C81-h] - Ruy Lopez:
open, Keres-Howell attack,
Ekstroem variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Qd7

1. «»
«»

[C81-i] - Ruy Lopez:
open, Keres-Howell attack,
Ekstroem variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Qd7
13.Nc3 Nxc3 14.bxc3

1. «»
«»

[C81-j] - Ruy Lopez:
open, Keres-Howell attack,
Ekstroem variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Qd7
13.Nc3 Nxc3 14.bxc3 f6 15.exf6 Bxf6

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«»

[C81-k] - Ruy Lopez:
open, Keres-Howell attack
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Bc5

1. «»
«»

[C81-l] - Ruy Lopez:
open, Keres-Howell attack
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5
7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7
10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Bc5
13.Be3 Bxe3 14.Qxe3 Qb8

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