1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8f6  4. e1g1  4... f6e4  5. f1e1  5... e4d6  6. f3e5  6... f8e7  7. b5f1  A topical way to break the Berlin Wall. 7... c6e5  8. e1e5  8... e8g8  9. d2d4  9... e7f6  10. e5e1  10... f8e8  11. e1e8  11... d6e8  12. d4d5  12... d7d6  13. b1d2  13... c8f5 Black has the more active pieces at  the moment but since the first player seized some space in return this may change on the long run. 14. d2c4  14... c7c6 In order to free himself, Black  weakens his pawn structure somewhat. 15. c2c3  15... f5e4  16. d5c6  16... b7c6  17. d1a4  17... c6c5  18. c1f4  18... d6d5  19. c4d2 Naiditsch went for a concrete line to attack the  hanging pawns. 19... e4f5  20. f1b5 The threat is Bb5-c6-b7 to trap the rook. 20... d8e7  21. d2b3 This looks very logical, but allows strong counterplay. 21... c5c4  22. b3a5  22... e7e2 The active queen promises Swiercz enough  counter-chances. 23. b5c6  23... a8d8  24. a4b5  24... e8d6  25. f4d6 Forced but good. White wins time to snack some pawns.