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ECO CODES | |
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(Click on an opening description to see diagram) |
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E50 - E59 |
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E50 |
Nimzo-Indian: 4.e3 e8g8, 5.Nf3, without ...d5 1. d2d4  g8f6
2.
c2c4
e7e6
3.
b1c3
 f8b4
4.
e2e3
0-0
5.
g1f3
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E51 |
Nimzo-Indian: 4.e3 e8g8, 5.Nf3 d7d5 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
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E51 |
Nimzo-Indian: 4.e3, Ragozin variation 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
b8c6
7.
0-0
d5c4
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E52 |
Nimzo-Indian: 4.e3, main line with ...b6 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
b7b6
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E53 |
Nimzo-Indian: 4.e3, main line with ...c5 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
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E53 |
Nimzo-Indian: 4.e3, Keres variation 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
b7b6
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E53 |
Nimzo-Indian: 4.e3, Gligoric system with 7...Nbd7 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
b8d7
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E54 |
Nimzo-Indian: 4.e3, Gligoric system with 7...dc 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
d5c4
8.
d3c4
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E54 |
Nimzo-Indian: 4.e3, Gligoric system, Smyslov variation 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
d5c4
8.
d3c4
 d8e7
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E55 |
Nimzo-Indian: 4.e3, Gligoric system, Bronstein variation 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
d5c4
8.
d3c4
b8d7
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E56 |
Nimzo-Indian: 4.e3, main line with 7...Nc6 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
b8c6
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E57 |
Nimzo-Indian: 4.e3, main line with 8...dc and 9...cd 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
b8c6
8.
a2a3
d5c4
9.
d3c4
c5d4
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E58 |
Nimzo-Indian: 4.e3, main line with 8...Bxc3 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
b8c6
8.
a2a3
b4c3
9.
b2c3
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E59 |
Nimzo-Indian: 4.e3, main line 1. d2d4 g8f6
2.
c2c4
e7e6
3.
b1c3
f8b4
4.
e2e3
0-0
5.
g1f3
d7d5
6. f1d3
c7c5
7.
0-0
b8c6
8.
a2a3
b4c3
9.
b2c3
d5c4
10.
d3c4
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