Nakamura H. (2701) - Friedel J. (2516)
US Championship/Saint Louis (9) 2009
Nakamura can literally play anything,which makes him very difficult to prepare against. He relies on his tremendous tactical talent enabling him to navigate in almost any position.
This is very unusual,but perhaps we will see more of it now. White's idea is to sap Black's strength by reinforcing e4
If 8... h6 White simply drops his Knight back: 9. Ne4 Nd5 10.
Black has to take whatever open lines he can and hope that his lead in development is enough to hold off the extra White pawn. The drawback of 8 Bd3 is obvious: White's queenside devlopment is clumsy, but if Black cannot find anything fast, Whte will simply catch up in development and remain a pawn up.
Meanwhile 10... c5 11. Qe2! Controlling light squares holds the key. 11... Nc6 12. Nxh7! Nxh7 13. Bxh7+ Kxh7 14. Qe4+ Kg8 15. Qxc6 Rb8 16. d3 Molnar,T (2075)-Brignone,R/Budapest 1999 saw White initiating favourable tactics
14. Rxe5 looks pretty good too: 14... Bd6 (14... Rf4 15. Bb2 h6 16. g3! Something similar happens in the game.) 15. Re1 h6 16. Nge4 Nxe4 17. Bxe4 Re8 18. d3 Be5 19. Bb2 Bxe4 20. Rxe4 Rxe4 21. dxe4 Qf6 22. Nd5 Bh2+ 23. Kxh2 Qxb2 24. f3 Nakamura probably didnt do this because he thought the game move was clear-cut
16... Bxf3 cedes a very powerful Bishop, but the text move isnt good enough.
Black soon runs out of steam
Black players may have to take a very close look at 8 Bd3 in the coming months!1-0