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OPENINGS THEORY
- ECO CODES BASE -
- C48 -
[C48-a] Four knights:
Spanish variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5
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[C48-b] - Four knights:
Ranken variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 a6 5.Bxc6
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[C48-c] - Four knights:
Spielmann variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 a6 5.Bxc6 dxc6 6.Nxe5 Nxe4
7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6
10.d4 Qd5
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[C48-d] - Four knights:
Spanish, classical defence
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Bc5
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[C48-e] - Four knights:
Bardeleben variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Bc5 5.0-0 0-0 6.Nxe5 Nxe5
7.d4 Bd6 8.f4 Nc6 9.e5 Bb4
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[C48-f] - Four knights:
Marshall variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Bc5 5.0-0 0-0 6.Nxe5 Nd4
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[C48-g] - Four knights:
Rubinstein counter-gambit
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Nd4
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[C48-h] - Four knights:
Rubinstein counter-gambit,
Bogolyubov variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Nd4 5.Nxe5 Qe7 6.f4
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[C48-i] - Four knights:
Rubinstein counter-gambit, 5.Be2
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Nd4 5.Be2
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[C48-j] - Four knights:
Rubinstein counter-gambit,
Maroczy variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Nd4 5.Be2 Nxf3+ 6.Bxf3 Bc5
7.0-0 0-0 8.d3 d6 9.Na4 Bb6
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[C48-k] - Four knights:
Rubinstein counter-gambit,
exchange variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Nd4 5.Nxd4
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[C48-l] - Four knights:
Rubinstein counter-gambit,
Henneberger variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
4.Bb5 Nd4 5.0-0
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