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Encyclopedia of Chess Openings

Eco Code

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  • A00-A99
    • A00-A09
    • A10-A19
    • A20-A29
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  • B00-B99
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ECO	Opening Name		DOWNLOAD!
B40	Sicilian defense	B40	1.e4-c5; 2.Nf3-e6
	1) Marshall variation		3.d4-d5
	2) 3.d4-cxd4 variation		3.d4-cxd4
	3) Rest in B40		Rest
B41	Sicilian defense: Kan	B41	1.e4-c5; 2.Nf3-e6;
	variation		3.d4-cxd4; 4.Nxd4-a6
	1) Kan, Maroczy bind (Reti)  variation		5.c4
	2) Rest in B41		Rest
B42	Sicilian defense: Kan	B42	1.e4-c5; 2.Nf3-e6;
	variation (5.Bd3)		3.d4-cxd4; 4.Nxd4-a6;
			5.Bd3
	1) Gipslis variation		5...Nf6; 6.O-O-d6; 7.c4-g6
	2) Polugaievsky variation		5...Bc5
	3) Swiss cheese variation		5...g6
	4) Rest in B42		Rest
B43	Sicilian defense: Kan	B43	1.e4-c5; 2.Nf3-e6;
	variation (5.Nc3)		3.d4-cxd4; 4.Nxd4-a6;
			5.Nc3
			Eco B43
B44	Sicilian defense	B44	1.e4-c5; 2.Nf3-e6;
			3.d4-cxd4; 4.Nxd4-Nc6
	1) Szen (anti-Taimanov) variation		5.Nb5
	2) Rest in B44		Rest
B45	Sicilian defense: Taimanov	B45	1.e4-c5; 2.Nf3-e6;
	variation		3.d4-cxd4; 4.Nxd4-Nc6;
			5.Nc3
	1) American attack		5...Nf6; 6.Ndb5-Bb4; 7.Nd6
	2) Rest in B45		Rest
B46	Sicilian defense: Taimanov	B46	1.e4-c5; 2.Nf3-e6;
	variation (5...a6)		3.d4-cxd4; 4.Nxd4-Nc6;
			5.Nc3-a6
			Eco B46
B47	Sicilian defense: Taimanov	B47	1.e4-c5; 2.Nf3-e6;
	(Bastrikov) variation (5...Qc7)		3.d4-cxd4; 4.Nxd4-Nc6;
			5.Nc3-Qc7
			Eco B47
B48	Sicilian defense: Taimanov	B48	1.e4-c5; 2.Nf3-e6;
	variation (5...Qc7; 6.Be3)		3.d4-cxd4; 4.Nxd4-Nc6;
			5.Nc3-Qc7; 6.Be3
			Eco B48
B49	Sicilian defense:Taimanov	B49	1.e4-c5; 2.Nf3-e6;
	variation (5...Qc7; 6.Be3-a6;		3.d4-cxd4; 4.Nxd4-Nc6;
	7.Be2)		5.Nc3-Qc7; 6.Be3-a6;
			7.Be2
			Eco B49

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