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Encyclopedia of Chess Openings

Eco Code

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• Openings
  • A00-A99
    • A00-A09
    • A10-A19
    • A20-A29
    • A30-A39
    • A40-A49
    • A50-A59
    • A60-A69
    • A70-A79
    • A80-A89
    • A90-A99
  • B00-B99
    • B00-B09
    • B10-B19
    • B20-B29
    • B30-B39
    • B40-B49
    • B50-B59
    • B60-B69
    • B70-B79
    • B80-B89
    • B90-B99
  • C00-C99
    • C00-C09
    • C10-C19
    • C20-C29
    • C30-C39
    • C40-C49
    • C50-C59
    • C60-C69
    • C70-C79
    • C80-C89
    • C90-C99
  • D00-D99
    • D00-D09
    • D10-D19
    • D20-D29
    • D30-D39
    • D40-D49
    • D50-D59
    • D60-D69
    • D70-D79
    • D80-D89
    • D90-D99
  • E00-E99
    • E00-E09
    • E10-E19
    • E20-E29
    • E30-E39
    • E40-E49
    • E50-E59
    • E60-E69
    • E70-E79
    • E80-E89
    • E90-E99
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ECO	Opening Name		DOWNLOAD!
A10	English opening: others	A10	1.c4
	moves
	1) Jaenisch gambit		1...b5
	2) Anglo-Dutch defense		1...f5
	3) 1...g6		1...g6
	4) Rest in A10		Rest
A11	English opening: Caro-	A11	1.c4-c6
	Kann defensive system
			Eco A11
A12	English opening: Caro-	A12	1.c4-c6; 2.Nf3-d5; 3.b3
	Kann defensive system
	1) Bogolyubov variation		3...Bg4
	2) Torre defensive system		3...Nf6; 4.g3 Bg4
	3) London defensive system		3...Nf6 4.g3 Bf5
	4) 3...Nf6		3...Nf6; 4.Bb2
	5) Rest in A12		Rest
A13	English opening (1...e6)	A13	1.c4-e6
	1) Romanishin gambit		2.Nf3-Nf6; 3.g3-a6; 4.Bg2-b5
	2) Agincourt variation		2.Nf3-d5
	3) Rest in A13		Rest
A14	English opening: Neo-	A14	1.c4-e6; 2.Nf3-d5; 3.g3-Nf6;
	Catalan declined		4.Bg2-Be7; 5.O-O
	1) Symmetrical: Keres defense		5...c5; 6.cxd5-Nxd5; 7.Nc3-Nc6
	2) Rest in A14		Rest
A15	English opening: Anglo-	A15	1.c4-Nf6
	Indian defense
	1) Orangutan english		2.b4
	2) 2.Nf3		2.Nf3
	3) Rest in A15		Rest
A16	English opening: 2.Nc3	A16	1.c4-Nf6; 2.Nc3
	variation
	1) Anglo-Gruenfeld defense		2...d5
	2) Rest in A16		Rest
A17	English opening: 2...e6	A17	1.c4-Nf6; 2.Nc3-e6
	variation
	1) Queens Indian formation		3.Nf3-b6
	2) Nimzo-English opening		3.Nf3-Bb4
	3) Rest in A17		Rest
A18	English opening:	A18	1.c4-Nf6; 2.Nc3-e6; 3.e4
	Mikenas-Carls variation
	1) Flohr variation		3...d5; 4.e5
	2) Kevitz variation		3...Nc6
	3) Rest in A18		Rest
A19	English opening:	A19	1.c4-Nf6; 2.Nc3-e6; 3.e4-c5
	Mikenas-Carls,  Sicilian
	variation
			Eco A19

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