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ECO CODES | |
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(Click on an opening description to see diagram) |
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C00 - C20 |
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C00 |
French defence 1. e2e4 e7e6 |
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C00 |
French defence, Steiner variation 1. e2e4 e7e6 2. c2c4 |
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C00 |
French: Reti (Spielmann) variation 1. e2e4 e7e6 2. b2b3 |
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C00 |
French: Steinitz attack 1. e2e4 e7e6 2. e4e5 |
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C00 |
French: Labourdonnais variation 1. e2e4 e7e6 2. f2f4 |
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C00 |
French defence 1. e2e4 e7e6 2.  g1f3
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C00 |
French: Wing gambit 1. e2e4 e7e6 2. g1f3
d7d5
3.
e4e5
c7c5
4.
b2b4
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C00 |
French defence 1. e2e4 e7e6 2. b1c3
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C00 |
French: Pelikan variation 1. e2e4 e7e6 2. b1c3
d7d5
3.
f2f4
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C00 |
French: Two knights variation 1. e2e4 e7e6 2. b1c3
d7d5
3.
g1f3
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C00 |
French: Chigorin variation 1. e2e4 e7e6 2.  d1e2
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C00 |
French: King's Indian attack 1. e2e4 e7e6 2. d2d3 |
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C00 |
French: Reversed Philidor formation 1. e2e4 e7e6 2. d2d3 d7d5 3. b1d2
g8f6
4.
g1f3
b8c6
5.
 f1e2
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C00 |
French defence 1. e2e4 e7e6 2. d2d4 |
|
C00 |
Lengfellner system 1. e2e4 e7e6 2. d2d4 d7d6 |
|
C00 |
St. George defence 1. e2e4 e7e6 2. d2d4 a7a6 |
|
C00 |
French defence 1. e2e4 e7e6 2. d2d4 d7d5 |
|
C00 |
French: Schlechter variation 1. e2e4 e7e6 2. d2d4 d7d5 3. f1d3
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C00 |
French: Alapin variation 1. e2e4 e7e6 2. d2d4 d7d5 3. c1e3
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C01 |
French: exchange variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4d5 |
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C01 |
French: exchange, Svenonius variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4d5 e6d5 4. b1c3
g8f6
5.
c1g5
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C01 |
French: exchange, Bogolyubov variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4d5 e6d5 4. b1c3
g8f6
5.
c1g5
b8c6
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C02 |
French: advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 |
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C02 |
French: advance, Steinitz variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. d4c5 |
|
C02 |
French: advance, Nimzovich variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. d1g4
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C02 |
French: advance, Nimzovich system 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. g1f3
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C02 |
French: advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. c2c3 |
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C02 |
French: advance, Wade variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. c2c3 d8b6
5.
g1f3
c8d7
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C02 |
French: advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. c2c3 b8c6
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C02 |
French: advance, Paulsen attack 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. c2c3 b8c6
5.
g1f3
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C02 |
French: advance, Milner-Barry gambit 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. c2c3 b8c6
5.
g1f3
d8b6
6. f1d3
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C02 |
French: advance, Euwe variation 1. e2e4 e7e6 2. d2d4 d7d5 3. e4e5 c7c5 4. c2c3 b8c6
5.
g1f3
c8d7
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C03 |
French: Tarrasch 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
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C03 |
French: Tarrasch, Haberditz variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
f7f5
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C03 |
French: Tarrasch, Guimard variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
b8c6
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C04 |
French: Tarrasch, Guimard main line 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
b8c6
4.
g1f3
g8f6
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C05 |
French: Tarrasch, closed variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
g8f6
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C05 |
French: Tarrasch, Botvinnik variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
g8f6
4.
e4e5
f6d7
5.
f1d3
c7c5
6. c2c3 b7b6 |
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C05 |
French: Tarrasch, closed variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
g8f6
4.
e4e5
f6d7
5.
f1d3
c7c5
6. c2c3 b8c6
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C06 |
French: Tarrasch, closed variation, main line 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
g8f6
4.
e4e5
f6d7
5.
f1d3
c7c5
6. c2c3 b8c6
7.
g1e2
c5d4
8.
c3d4
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C06 |
French: Tarrasch, Leningrad variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
g8f6
4.
e4e5
f6d7
5.
f1d3
c7c5
6. c2c3 b8c6
7.
g1e2
c5d4
8.
c3d4
d7b6
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C07 |
French: Tarrasch, open variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
c7c5
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C07 |
French: Tarrasch, Eliskases variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
c7c5
4.
e4d5
d8d5
5.
g1f3
c5d4
6. f1c4
d5d8
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C08 |
French: Tarrasch, open, 4.ed ed 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
c7c5
4.
e4d5
e6d5
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C09 |
French: Tarrasch, open variation, main line 1. e2e4 e7e6 2. d2d4 d7d5 3. b1d2
c7c5
4.
e4d5
e6d5
5.
g1f3
b8c6
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C10 |
French: Paulsen variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
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C10 |
French: Marshall variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
c7c5
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C10 |
French: Rubinstein variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
d5e4
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C10 |
French: Fort Knox variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
d5e4
4.
c3e4
c8d7
5.
g1f3
d7c6
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C10 |
French: Rubinstein variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
d5e4
4.
c3e4
b8d7
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C10 |
French: Rubinstein, Capablanca line 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
d5e4
4.
c3e4
b8d7
5.
g1f3
g8f6
6. e4f6
d7f6
7.
f3e5
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C10 |
French: Frere (Becker) variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
d5e4
4.
c3e4
d8d5
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C11 |
French defence 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
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C11 |
French: Swiss variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
f1d3
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C11 |
French: Henneberger variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1e3
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C11 |
French: Steinitz variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
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C11 |
French: Steinitz, Bradford attack 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
f6d7
5.
f2f4
c7c5
6. d4c5 f8c5
7.
d1g4
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C11 |
French: Steinitz variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
f6d7
5.
f2f4
c7c5
6. d4c5 b8c6
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C11 |
French: Steinitz, Brodsky-Jones variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
f6d7
5.
f2f4
c7c5
6. d4c5 b8c6
7.
a2a3
f8c5
8.
d1g4
0-0
9.
g1f3
f7f6
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C11 |
French: Steinitz variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
f6d7
5.
f2f4
c7c5
6. g1f3
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C11 |
French: Steinitz, Boleslavsky variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
f6d7
5.
f2f4
c7c5
6. g1f3
b8c6
7.
c1e3
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C11 |
French: Steinitz, Gledhill attack 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
e4e5
f6d7
5.
d1g4
|
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C11 |
French: Burn variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
d5e4
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C12 |
French: MacCutcheon variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
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C12 |
French: MacCutcheon, Bogolyubov variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4d5
d8d5
6. g5f6
g7f6
7.
d1d2
d5a5
|
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C12 |
French: MacCutcheon, advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
|
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C12 |
French: MacCutcheon, Chigorin variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. e5f6 |
|
C12 |
French: MacCutcheon, Grigoriev variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. e5f6 h6g5 7. f6g7  h8g8
8.
h2h4
g5h4
9.
d1g4
|
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C12 |
French: MacCutcheon, Bernstein variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5h4
|
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C12 |
French: MacCutcheon, Janowski variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5e3
|
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C12 |
French: MacCutcheon, Dr. Olland (Dutch) variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5c1
|
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C12 |
French: MacCutcheon, Tartakower variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5d2
f6d7
|
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C12 |
French: MacCutcheon, Lasker variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5d2
b4c3
|
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C12 |
French: MacCutcheon, Duras variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5d2
b4c3
7.
b2c3
f6e4
8.
d1g4
 e8f8
9.
d2c1
|
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C12 |
French: MacCutcheon, Lasker variation, 8...g6 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8b4
5.
e4e5
h7h6
6. g5d2
b4c3
7.
b2c3
f6e4
8.
d1g4
g7g6
|
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C13 |
French: classical 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
|
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C13 |
French: classical, Anderssen variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
g5f6
|
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C13 |
French: classical, Anderssen-Richter variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
g5f6
e7f6
6. e4e5 f6e7
7.
d1g4
|
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C13 |
French: classical, Vistaneckis (Nimzovich) variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6g8
|
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C13 |
French: classical, Frankfurt variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6g8
6. g5e3
b7b6
|
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C13 |
French: classical, Tartakower variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6e4
|
|
C13 |
French: Albin-Alekhine-Chatard attack 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. h2h4 |
|
C13 |
French: Albin-Alekhine-Chatard attack, Maroczy variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. h2h4 a7a6 |
|
C13 |
French: Albin-Alekhine-Chatard attack, Breyer variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. h2h4 c7c5 |
|
C13 |
French: Albin-Alekhine-Chatard attack, Teichmann variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. h2h4 f7f6 |
|
C13 |
French: Albin-Alekhine-Chatard attack, Spielmann variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. h2h4 0-0 |
|
C14 |
French: classical variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
|
|
C14 |
French: classical, Tarrasch variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
7.
f1d3
|
|
C14 |
French: classical, Rubinstein variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
7.
d1d2
|
|
C14 |
French: classical, Alapin variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
7.
c3b5
|
|
C14 |
French: classical, Pollock variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
7.
d1g4
|
|
C14 |
French: classical, Steinitz variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
7.
f2f4
|
|
C14 |
French: classical, Stahlberg variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
g8f6
4.
c1g5
f8e7
5.
e4e5
f6d7
6. g5e7
d8e7
7.
f2f4
0-0
8.
g1f3
c7c5
9.
d1d2
b8c6
10.
0-0-0
c5c4
|
|
C15 |
French: Winawer (Nimzovich) variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
|
|
C15 |
French: Winawer, Kondratiyev variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
f1d3
c7c5
5.
e4d5
d8d5
6. c1d2
|
|
C15 |
French: Winawer, fingerslip variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
c1d2
|
|
C15 |
French: Winawer, Alekhine (Maroczy) gambit 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
g1e2
|
|
C15 |
French: Winawer, Alekhine gambit, Alatortsev variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
g1e2
d5e4
5.
a2a3
b4e7
6. c3e4
g8f6
7.
e2g3
0-0
8.
f1e2
b8c6
|
|
C15 |
French: Winawer, Alekhine gambit 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
g1e2
d5e4
5.
a2a3
b4c3
|
|
C15 |
French: Winawer, Alekhine gambit, Kan variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
g1e2
d5e4
5.
a2a3
b4c3
6. e2c3
b8c6
|
|
C16 |
French: Winawer, advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
|
|
C16 |
French: Winawer, Petrosian variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
d8d7
|
|
C17 |
French: Winawer, advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
|
|
C17 |
French: Winawer, advance, Bogolyubov variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
c1d2
|
|
C17 |
French: Winawer, advance, Russian variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
d1g4
|
|
C17 |
French: Winawer, advance, 5.a3 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
|
|
C17 |
French: Winawer, advance, Rauzer variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
c5d4
6. a3b4 d4c3 7. g1f3
|
|
C18 |
French: Winawer, advance variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 |
|
C18 |
French: Winawer, classical variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 d8c7
|
|
C19 |
French: Winawer, advance, 6...Ne7 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 g8e7
|
|
C19 |
French: Winawer, advance, Smyslov variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 g8e7
7.
a3a4
|
|
C19 |
French: Winawer, advance, positional main line 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 g8e7
7.
g1f3
|
|
C19 |
French: Winawer, advance, poisoned pawn variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 g8e7
7.
d1g4
|
|
C19 |
French: Winawer, advance, poisoned pawn, Euwe-Gligoric variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 g8e7
7.
d1g4
d8c7
8.
g4g7
h8g8
9.
g7h7
c5d4
10.
e1d1
|
|
C19 |
French: Winawer, advance, poisoned pawn, Konstantinopolsky variation 1. e2e4 e7e6 2. d2d4 d7d5 3. b1c3
f8b4
4.
e4e5
c7c5
5.
a2a3
b4c3
6. b2c3 g8e7
7.
d1g4
d8c7
8.
g4g7
h8g8
9.
g7h7
c5d4
10.
g1e2
|
|
C20 |
King's pawn game 1. e2e4 e7e5 |
|
C20 |
KP: Indian opening 1. e2e4 e7e5 2. d2d3 |
|
C20 |
KP: Mengarini's opening 1. e2e4 e7e5 2. a2a3 |
|
C20 |
KP: King's head opening 1. e2e4 e7e5 2. f2f3 |
|
C20 |
KP: Patzer opening 1. e2e4 e7e5 2. d1h5
|
|
C20 |
KP: Napoleon's opening 1. e2e4 e7e5 2. d1f3
|
|
C20 |
KP: Lopez opening 1. e2e4 e7e5 2. c2c3 |
|
C20 |
Alapin's opening 1. e2e4 e7e5 2. g1e2
|
|