1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. g2g3  4... d5c4  5. f1g2  5... a7a6 This is one of the most aggressive options against the ultra-solid Catalan Opening. Black intends to protect the c4-pawn with b7-b5. 6. e1g1  6... b8c6  7. b1c3 