context: 1. e2e4  1... c7c5  2. g1f3  2... e7e6  3. c2c4 An interesting sideline (if a move with more than ten thousand games can be called that) that is played by very strong GMs from time to time. 3... b8c6  4. d2d4  4... c5d4  5. f3d4  5... g8f6  6. b1c3  6... f8c5 An important moment. 6...Bb4 is by far the most popular move. 7. d4b3 It's hard to say which move is better. 7... c5b4  8. f1d3  8... e8g8  9. e1g1  9... b4c3  10. b2c3 White's pawn structure is shattered, but he has the bishop pair and Black must be careful with the dark squares. 10... d7d6 This is a bit slow and allows White to fight for the initiative. 11. c1a3 A new move. White is pressing the pawn on d6. 11... f8e8 Preparing d6-d5 in case the pawn is attacked. 12. f1e1  12... d8c7  13. b3d4 The knight goes back to the center. 13... a7a6  14. d4c6 A very deep and strong idea. Vidit uses a tactical chance to open the game. 14... c7c6  15. d3c2 A tempting move, attacking the d6-pawn and changing the character of the game. Black, however, can defend with accurate play and there was a better move. 15... c6c4  16. d1d6  16... e6e5  17. c2b3 