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Eco Code B00-B99

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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

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Super-Positional
 D35-A29-D41-E14
 C07-B06-B17-E18
Positional
 E15-D85-A30-D45
 B17-C42-E15-E12
Usual
 C42-B33-D30-B90
 E15-D27-C42-D20
Attack
 C42-E12-C92-E15
 B90-B85-E92-E97
Super-Attack
 C92-C95-B88-B10
 B92-D41-A30-E61
 
Most Popular Openings
 BENONI (1-2)
 BUDAPEST
 CARO-KANN
 CHIGORIN
 DRAGON
 DUTCH (1-2)
 ENGLISH (1-2-3)
 GRUENFELD (1-2-3)
 KING'S GAMBIT
 KING'S INDIAN (1-2)
 KING'S INDIAN(3-4)
 KING'S INDIAN(5)
 NAJDORF
 NIMZOINDIAN (2-3)
 NIMZOINDIAN (4-5)
 OPEN SPANISH
 POLISH (Sokolsky)
 QUEEN'S INDIAN(1)
 QUEEN'S INDIAN(2)
 RETI
 RICHTER-RAUZER
 SLAV
 STEINITZ (1-2)
 
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