1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. d4b3 A fashionable  line, still. White often tries to enter a favorable version of the Keres  Attack. 6... e7e6  7. g2g4  7... b7b5  8. f1g2  8... c8b7  9. g4g5  9... f6d7  10. h2h4  10... b8c6  11. f2f4  11... f8e7  12. c3e2 A  novelty which will hardly attract any followers. Wei might have mixed up  something in his preparation. 12... h7h6 This is it! The overextended pawn phalanx collapses and the white king is far more exposed than the opponent's one. 13. e2d4  13... c6d4 