1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. e2e3  4... e8g8  5. g1f3  5... b4c3  6. b2c3  6... d7d6  7. f1d3  7... e6e5 So employs a rare system, which was played against him by Aronian this year in a blitz game. 8. e3e4  8... f8e8  9. e1g1  9... e5d4 Boldly accepting the sacrificed pawn, but we are still in both players' prep. 10. c3d4  10... f6e4  11. f1e1  11... e4f6 