1. c2c4  1... e7e6  2. g2g3  2... d7d5  3. f1g2  3... g8f6  4. g1f3  4... f8e7  5. d2d4  5... e8g8  6. b1c3 This is only the third most popular move, but it has some poison. 6... d5c4  7. f3e5  7... b8c6  8. g2c6  8... b7c6  9. e5c6  9... d8e8  10. c6e7  10... e8e7  11. d1a4 White wins a pawn, but Black gets compensation with the strong light-squared bishop. 11... f6d5 [%c_effect d5;square;d5;type;Interesting;persistent;true]