1. e2e4  1... c7c5 In a must-win situation, Ding naturally switches to the Sicilian defense. 2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... b8c6  6. f1e2 The most  solid, classical choice. 6... e7e5  7. d4b3  7... f8e7  8. c1g5  8... e8g8  9. g5f6  9... e7f6  10. c3d5 This position was always considered either slightly better for White (from the perspective of the first player) or absolutely harmless (from  Black's perspective.) Both evaluations suited Radjabov well. 10... f6g5  11. e2g4 Trading the light-squared bishop is a dream-come-true for White  if the pawn structure does not change. 11... c8e6  12. e1g1 