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Encyclopedia of Chess Openings

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  • A00-A99
    • A00-A09
    • A10-A19
    • A20-A29
    • A30-A39
    • A40-A49
    • A50-A59
    • A60-A69
    • A70-A79
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    • A90-A99
  • B00-B99
    • B00-B09
    • B10-B19
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    • B30-B39
    • B40-B49
    • B50-B59
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    • 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
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  • E00-E99
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ECO	Opening Name		DOWNLOAD!
D40	Queen's gambit declined:	D40	1.d4-d5; 2.c4-e6;
	semi-Tarrasch defense		3.Nc3-Nf6; 4.Nf3-c5
	1) Symmetrical variation		5.e3-Nc6; 6.Bd3-Bd6; 7.O-O O-O
	2) Pillsbury variation		5.Bg5
	3) Rest in D40		Rest
D41	Queen's gambit declined:	D41	1.d4-d5; 2.c4-e6;
	semi-Tarrasch (5.cxd5)		3.Nc3-Nf6; 4.Nf3-c5;
			5.cxd5
	1) Kmoch variation		5...Nxd5; 6.e4-Nxc3; 7.bxc3-cxd4;
			8.cxd4-Bb4; 9.Bd2-Bxd2;
			10.Qxd2-O-O; 11.Bb5
	2) San Sebastian variation		5... Nxd5; 6.e4-Nxc3; 7.bxc3-cxd4;
			8.cxd4-Bb4; 9.Bd2-Qa5
	3) 6.e3 variation		5...Nxd5; 6.e3
	4) Rest in D41		Rest
D42	Queen's gambit declined:	D42	1.d4-d5; 2.c4-e6;
	semi-Tarrasch (7.Bd3)		3.Nc3-Nf6; 4.Nf3-c5;
			5.cxd5-Nxd5; 6.e3-Nc6;
			7.Bd3
			Eco D42
D43	Queen's gambit declined:	D43	1.d4-d5; 2.c4-e6;
	semi-Slav		3.Nc3-Nf6; 4.Nf3-c6
	1) Hastings variation		5.Bg5-h6; 6.Bxf6-Qxf6; 7.Qb3
	2) Rest in D43		Rest
D44	Queen's gambit declined:	D44	1.d4-d5; 2.c4-e6;
	semi-Slav (5.Bg5 dxc4)		3.Nc3-Nf6; 4.Nf3-c6;
			5.Bg5-dxc4
	1) Botvinnik system (anti-Meran)		6.e4
	2) Rest in D44		Rest
D45	Queen's gambit declined:	D45	1.d4-d5; 2.c4-e6;
	semi-Slav (5.e3)		3.Nc3-Nf6; 4.Nf3-c6; 5.e3
	1) Stonewall defense		5....Ne4; 6.Bd3-f5
	2) Accelerated Meran (Alekhine )		5...a6
	3) 5...Nbd7 variation		5...Nbd7
	4) Rest in D45		Rest
D46	Queen's gambit declined:	D46	1.d4-d5; 2.c4-e6;
	semi-Slav (6.Bd3)		3.Nc3-Nf6; 4.Nf3-c6;
			5.e3-Nbd7; 6.Bd3
	1) Bogolyubov variation		6...Be7
	2) Romih variation		6...Bb4
	3) Chigorin defense		6...Bd6
	4) Rest in D46		Rest
D47	Queen's gambit declined:	D47	1.d4-d5; 2.c4-e6;
	semi-Slav (7.Bc4)		3.Nc3-Nf6; 4.Nf3-c6;
			5.e3-Nbd7; 6.Bd3-dxc4;
			7.Bxc4
	1) Meran variation		7...b5
	2) Rest in D47		Rest
D48	Queen's gambit declined:	D48	1.d4-d5; 2.c4-e6;
	semi-Slav, Meran (8...a6)		3.Nc3-Nf6; 4.Nf3-c6;
			5.e3-Nbd7; 6.Bd3-dxc4;
			7.Bxc4-b5; 8.Bd3-a6
	1) Pirc variation		9.e4-b4
	2) 9...c5 variation		9.e4-c5
	3) Rest in D48		Rest
D49	Queen's gambit declined:	D49	1.d4-d5; 2.c4-e6;
	semi-Slav, Meran,		3.Nc3-Nf6; 4.Nf3-c6;
	Blumenfeld variation		5.e3-Nbd7; 6.Bd3-dxc4;
			7.Bxc4-b5; 8.Bd3-a6;
			9.e4-c5; 10.e5-cxd4;
			11.Nxb5
	1) Rabinovich variation		11...Ng4
	2) Sozin variation		11...Nxe5
	3) Rest in D49		Rest

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