King's Indian, Nimzo-Indian, Queen's Indian, Catalan and Bogo-Indian in Eco Chess!

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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 Code E00-E99

ECO	Opening Name	MOVES (Algebraic System)

E00-E09	Queen's pawn game	1.d4-Nf6; 2.c4-e6
	Others(E00)	3.Others and 3.g3-others
	Catalan opening (E01-E09)	3.g3-d5; 4.Bg2

E10-E19	Queen's pawn game	1.d4-Nf6; 2.c4-e6; 3.Nf3
	Others (E10)	3...Others
	Bogo-Indian defense (E11)	3...Bb4
	Queen's Indian defense (E12-E19)	3...b6

E20-E29	Nimzo-Indian defense	1.d4-Nf6; 2.c4-e6; 3.Nc3-Bb4
	Others (E20)	4.Others
	Three knights variation (E21)	4.Nf3
	Spielmann variation (E22-E23)	4.Qb3
	Saemisch variation (E24-E29)	4.a3-Bxc3; 5.bxc3

E30-E39	Nimzo-Indian defense	1.d4-Nf6; 2.c4-e6; 3.Nc3-Bb4
		(only Bg5 and Qc2)
	Leningrad (4.Bg5) (E30-E31)	4.Bg5
	Classical (4.Qc2) (E32-E39)	4.Qc2

E40-E49	Nimzo-Indian defense	1.d4-Nf6; 2.c4-e6; 3.Nc3-Bb4;
	(4.e3)	4.e3
	Others (E40)	4...Others
	Nimzo-Indian (4.e3-c5) (E41-E42)	4...c5
	Fischer variation (E43-E45)	4...b6
	4.e3-O-O variation (E46-E49)	4...O-O

E50-E59	Nimzo-Indian (4.e3, 5.Nf3)	1.d4-Nf6; 2.c4-e6; 3.Nc3-Bb4;
		4.e3-O-O; 5.Nf3
	Others (E50)	5...Others
	5...d5 variation (E51-E59)	5...d5

E60-E69	King's Indian defense	1.d4-Nf6; 2.c4-g6
	Others (E60)	3.Others
	3.Nc3 variation (E61-E69)	3.Nc3

E70-E79	King's Indian defense	1.d4-Nf6; 2.c4-g6; 3.Nc3-Bg7;
		4.e4
	Others (E70)	4...Others and 4...d6
	Makagonov system (5.h3) (E71)	4...d6; 5.h3
	With 4.e4, 5.g3 (E72)	4...d6; 5.g3
	5.Be2 variation (E73-E75)	4...d6; 5.Be2
	Four pawns attack (E76-E79)	4...d6; 5.f4

E80-E89	King's Indian (Saemisch	1.d4-Nf6; 2.c4-g6; 3.Nc3-Bg7;
	variation)	4.e4-d6; 5.f3
	Others (E80)	5...Others
	With 5...O-O (E81-E89)	5...O-O

E90-E99	King's Indian defense	1.d4-Nf6; 2.c4-g6; 3.Nc3-Bg7;
	(5.Nf3)	4.e4-d6; 5.Nf3
	Others (E90)
	With 5...O-O (E91-E99)