1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8f6  4. e1g1  4... f6e4  5. f1e1  5... e4d6  6. f3e5  6... f8e7  7. b5f1  7... c6e5  8. e1e5  8... e8g8  9. d2d4  9... e7f6 One of the most solid lines in the Berlin.  White is trying to squeeze the tiniest of the advantages in a Petroff-like pawn structure. 10. e5e1  10... f8e8  11. c2c3  11... e8e1 