| ECO |
Opening Name |
MOVES (Algebraic System) |
| |
|
|
| C00-C09 |
French defense |
1.e4-e6 |
| |
Others (C00) |
2.Others |
| |
2.d4-d5 variation (C01-C09) |
2.d4-d5 |
| |
|
|
| C10-C19 |
French defense: Paulsen |
1.e4-e6; 2.d4-d5; 3.Nc3 |
| |
variation |
|
| |
Others (C10) |
3...Others |
| |
3...Nf6 variation (C11-C14) |
3...Nf6 |
| |
Winawer variation (C15-C19) |
3...Bb4 |
| |
|
|
| C20-C29 |
King's pawn game |
1.e4-e5 |
| |
Others (C20) |
2.Others |
| |
Centre game (C21-C22) |
2.d4 |
| |
Bishop's opening (C22-C23) |
2.Bc4 |
| |
Vienna game (C24-C29) |
2.Nc3 |
| |
|
|
| C30-C39 |
King's gambit |
1.e4-e5; 2.f4 |
| |
Others (C30) |
2...Others |
| |
Declined, Falkbeer (C31-C32) |
2...d5 |
| |
Accepted (C33-C39) |
2...exf4 |
| |
|
|
| C40-C49 |
King's knight opening |
1.e4-e5; 2.Nf3 |
| |
Others (C40) |
2...Others |
| |
Philidor's defense (C41) |
2...d6 |
| |
Petrov's defense (C42-C43) |
2...Nf6 |
| |
2...Nc6 variation (C44-C49) |
2...Nc6 |
| |
|
|
| C50-C59 |
King's pawn game |
1.e4-e5; 2.Nf3-Nc6; 3.Bc4 |
| |
Others (C50) |
3...Others |
| |
3...Bc5 variation (C51-C54) |
3...Bc5 |
| |
Two knights defense (C55-C59) |
3...Nf6 |
| |
|
|
| C60-C69 |
Ruy Lopez (Spanish) |
1.e4-e5; 2.Nf3-Nc6; 3.Bb5 |
| |
Others (C60) |
3...Others |
| |
Bird's defense (C61) |
3...Nd4 |
| |
Old Steinitz defense (C62) |
3...d6 |
| |
Schliemann defense (C63) |
3...f5 |
| |
Classical (Cordel) defense (C64) |
3...Bc5 |
| |
Berlin defense (C65-C67) |
3...Nf6 |
| |
Exchange variation (C68-C69) |
3...a6; 4.Bxc6 |
| |
|
|
| C70-C79 |
Ruy Lopez (Spanish) |
1.e4-e5; 2.Nf3-Nc6; 3.Bb5-a6; |
| |
|
4.Ba4 |
| |
Others (C70) |
4...Others |
| |
Modern Steinitz defense (C71-C76) |
4...d6 |
| |
Morphy defense (C77-C79) |
4...Nf6 |
| |
|
|
| C80-C89 |
Ruy Lopez (Spanish) |
1.e4-e5; 2.Nf3-Nc6; 3.Bb5-a6; |
| |
|
5.O-O |
| |
Open (Tarrasch) (C80-C83) |
5...Ne4 |
| |
Closed defense (C84-C89) |
5...Be7 |
| |
|
|
| C90-C99 |
Ruy Lopez: (Spanish) |
1.e4-e5; 2.Nf3-Nc6; 3.Bb5-a6; |
| |
Closed defense |
4.Ba4-Nf6; 5.O-O-Be7; 6.Re1-b5; |
| |
(with 8...d6) |
7.Bb3-O-O; 8.c3-d6 |
| |
Others (C90) |
9.Others |
| |
9.d4 variation (C91) |
9.d4 |
| |
9.h3 variation (C92-C99) |
9.h3 |
