ECO

 B20-B29

indice dei codici Eco  Eco codes index 


B20
B20 Sicilian defence

1.e2e4 c7c5



   B20 Sicilian: Gloria variation

   1.e2e4 c7c5 c2c4 d7d6 b1c3 b8c6 g2g3 h7h5

   B20 Sicilian: Steinitz variation

   1.e2e4 c7c5 g2g3

   B20 Sicilian: wing gambit

   1.e2e4 c7c5 b2b4

      B20 Sicilian: wing gambit, Santasiere variation

      1.e2e4 c7c5 b2b4 c5b4 c2c4

      B20 Sicilian: wing gambit, Marshall variation

      1.e2e4 c7c5 b2b4 c5b4 a2a3

         B20 Sicilian: wing gambit, Marienbad variation

         1.e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 c1b2

         B20 Sicilian: wing gambit, Carlsbad variation

         1.e2e4 c7c5 b2b4 c5b4 a2a3 b4a3

   B20 Sicilian: Keres variation (2.Ne2)

   1.e2e4 c7c5 g1e2

B21
B21 Sicilian: Grand Prix attack

1.e2e4 c7c5 f2f4



   B21 Sicilian: Smith-Morra gambit

   1.e2e4 c7c5 d2d4

      B21 Sicilian: Andreaschek gambit

      1.e2e4 c7c5 d2d4 c5d4 g1f3 e7e5 c2c3

      B21 Sicilian: Smith-Morra gambit

      1.e2e4 c7c5 d2d4 c5d4 c2c3

      B21 Sicilian: Smith-Morra gambit, Chicago defence

      1.e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 d7d6 f1c4 e7e6 e1g1 a7a6 d1e2 b7b5 c4b3 a8a7


B22
B22 Sicilian: Alapin's variation (2.c3)

1.e2e4 c7c5 c2c3



   B22 Sicilian: 2.c3, Heidenfeld variation

   1.e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 b1a3

B23
B23 Sicilian: closed

1.e2e4 c7c5 b1c3

   B23 Sicilian: closed, Korchnoi variation

   1.e2e4 c7c5 b1c3 e7e6 g2g3 d7d5

   B23 Sicilian: closed, 2...Nc6

   1.e2e4 c7c5 b1c3 b8c6

      B23 Sicilian: chameleon variation

      1.e2e4 c7c5 b1c3 b8c6 g1e2

      B23 Sicilian: Grand Prix attack

      1.e2e4 c7c5 b1c3 b8c6 f2f4

         B23 Sicilian: Grand Prix attack, Schofman variation

         1.e2e4 c7c5 b1c3 b8c6 f2f4 g7g6 g1f3 f8g7 f1c4 e7e6 f4f5

B24
B24 Sicilian: closed

1.e2e4 c7c5 b1c3 b8c6 g2g3

   B24 Sicilian: closed, Smyslov variation

   1.e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 e7e6 c1e3 c6d4 c3e2

B25
B25 Sicilian: closed

1.e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6

   B25 Sicilian: closed, 6.Ne2 e5 (Botvinnik)

   1.e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 g1e2 e7e5

   B25 Sicilian: closed, 6.f4

   1.e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4

      B25 Sicilian: closed, 6.f4 e5 (Botvinnik)

      1.e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 e7e5

B26
B26 Sicilian: closed, 6.Be3

1.e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 c1e3

B27
B27 Sicilian defence

1.e2e4 c7c5 g1f3

   B27 Sicilian: Stiletto (Althouse) variation

   1.e2e4 c7c5 g1f3 d8a5

   B27 Sicilian: Quinteros variation

   1.e2e4 c7c5 g1f3 d8c7

   B27 Sicilian: Katalimov variation

   1.e2e4 c7c5 g1f3 b7b6

   B27 Sicilian: Hungarian variation

   1.e2e4 c7c5 g1f3 g7g6

      B27 Sicilian: Acton extension

      1.e2e4 c7c5 g1f3 g7g6 c2c4 f8h6


B28
B28 Sicilian: O'Kelly variation

1.e2e4 c7c5 g1f3 a7a6



B29
B29 Sicilian: Nimzovich-Rubinstein variation

1.e2e4 c7c5 g1f3 g8f6

   B29 Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit

   1.e2e4 c7c5 g1f3 g8f6 e4e5 f6d5 b1c3 e7e6 c3d5 e6d5 d2d4 b8c6