| ECO |
Opening Name |
MOVES (Algebraic System) |
| |
|
|
| B00-B09 |
King's pawn opening |
1.e4-Others |
| |
Others (B00) |
1...Others |
| |
Scandinavian defense (B01) |
1...d5 |
| |
Alekhine's defense (B02-B05) |
1...Nf6 |
| |
Robatsch (modern) defense (B06) |
1...g6 |
| |
Pirc defense (B07-B09) |
1...d6; 2.d4-Nf6; 3.Nc3 |
| |
|
|
| B10-B19 |
Caro-Kann defense |
1.e4-c6 |
| |
Others (B10) |
2.Others |
| |
Two knights variation (B11) |
2.Nc3-d5; 3.Nf3-Bg4 |
| |
2.d4 variation (B12-B19) |
2.d4 |
| |
|
|
| B20-B29 |
Sicilian defense |
1.e4-c5 |
| |
Others (B20) |
2.Others |
| |
Grand Prix attack (B21) |
2.f4 |
| |
Alapin's variation (2.c3) (B22) |
2.c3 |
| |
Closed system (B23-B26) |
2.Nc3 |
| |
2.Nf3 variation (B27-B29) |
2.Nf3 |
| |
|
|
| B30-B39 |
Sicilian defense |
1.e4-c5; 2.Nf3-Nc6 |
| |
Others (B30) |
3.Others |
| |
Nimzovich-Rossolimo attack (B31) |
3.Bb5-g6 |
| |
3.d4 variation (B32-B39) |
3.d4 |
| |
|
|
| B40-B49 |
Sicilian defense |
1.e4-c5; 2.Nf3-e6 |
| |
Others (B40) |
3.Others |
| |
Kan variation (B41-B49) |
3.d4-cxd4; 4.Nxd4 |
| |
|
|
| B50-B59 |
Sicilian defense |
1.e4-c5; 2.Nf3-d6 |
| |
Others (B50) |
3.Others |
| |
Nimzovich- Rossolimo attack (B51- |
3.Bb5 |
| |
B52) |
|
| |
Chekhover variation (B53) |
3.d4-cxd4; 4.Qxd4 |
| |
4.Nd4 (B54-B59) |
3.d4-cxd4; 4.Nxd4 |
| |
|
|
| B60-B69 |
Sicilian defense: Richter- |
1.e4-c5; 2.Nf3-d6; 3.d4-cxd4; |
| |
Rauzer |
4.Nxd4-Nf6; 5.Nc3-Nc6; 6.Bg5 |
| |
Others (B60) |
6...Others |
| |
Larsen variation (7.Qd2) (B61) |
6...Bd7; 7.Qd2 |
| |
6...e6 variation (B62-B69) |
6...e6 |
| |
|
|
| B70-B79 |
Sicilian defense: dragon |
1.e4-c5; 2.Nf3-d6; 3.d4-cxd4; |
| |
variation |
4.Nxd4-Nf6; 5.Nc3-g6 |
| |
Others (B70) |
6.Others |
| |
Levenfish variation (B71) |
6.f4 |
| |
6.Be3 variation (B72-B79) |
6.Be3 |
| |
|
|
| B80-B89 |
Sicilian defense: |
1.e4-c5; 2.Nf3-d6; 3.d4-cxd4; |
| |
Scheveningen variation |
4.Nxd4-Nf6; 5.Nc3-e6 |
| |
Others (B80) |
6.Others |
| |
Keres attack (B81) |
6.g4 |
| |
6.f4 variation (B82) |
6.f4 |
| |
6.Be2 variation (B83-B85) |
6.Be2 |
| |
Sozin attack (B86-B89) |
6.Bc4 |
| |
|
|
| B90-B99 |
Sicilian defense: Najdorf |
1.e4-c5; 2.Nf3-d6; 3.d4-cxd4; |
| |
|
4.Nxd4-Nf6; 5.Nc3-a6 |
| |
Others (B90) |
6.Others |
| |
Fianchetto variation (B91) |
6.g3 |
| |
Opovcensky variation (B92) |
6.Be2 |
| |
6.f4 (B93) |
6.f4 |
| |
6.Bg5 (B94-B99) |
6.Bg5 |
