SÉRIE B (B00-B99) – Semi-ouvertes (Sicilienne, Caro-Kann)
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B00 - 1. e4 - King's Pawn Game (1)
King's Pawn Game Coups: 1. e4 -
B01 - 1. e4 d5 - Scandinavian Defense (1)
Code ECO B01 - Scandinavian Defense Coups: 1. e4 d5 -
B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4.... - Alekhine Defense (3)
Code ECO B04 - Alekhine Defense Coups: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 -
B06 - 1. e4 g6 - Modern Defense (1)
Code ECO B06 - Modern Defense Coups: 1. e4 g6 -
B20 - B99 - 1. e4 c5 - Sicilian Defense (101)
Code ECO B20 - Sicilian Defense Coups: 1. e4 c5
