1. e2e4  1... c7c5  2. b1c3  2... d7d6  3. g1e2  3... g8f6  4. h2h3  4... e7e5  5. d2d3  5... b8c6  6. g2g4 Andreikin expands on the kingside. His main idea is to remove the  black knight from the defense of the central outpost. 6... f8e7  7. f1g2  7... h7h5 On his turn Vachier-Lagrave challenges White's position before  his opponent consolidates. 8. g4g5  8... f6h7  9. h3h4  9... f7f6  10. c3d5 Playing for the  initiative. 10... f6g5  11. h4g5  11... h7g5  12. e2c3  12... g7g6 