[Event "ch-SUI"]
[Site "Graechen SUI"]
[Date "2009.07.15"]
[Round "7"]
[White "Korchnoi,V"]
[Black "Williams,Si1"]
[Result "0-1"]
[WhiteElo "2561"]
[BlackElo "2527"]
[ECO "E90"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.h3 e5 7.d5 a5 8.Bg5 h6 9.Be3 Na6
10.Bd3 c6 11.Qd2 Kh7 12.O-O cxd5 13.cxd5 Nd7 14.Nh2 Ndc5 15.Bc2 f5 16.f4 exf4
17.Rxf4 fxe4 18.Raf1 Rxf4 19.Rxf4 Nb4 20.Bxe4 Nxe4 21.Nxe4 Bf5 22.Nc3 Qe7
23.Rf3 Re8 24.Ng4 h5 25.Nf2 Nc2 26.Bf4 Bd4 27.Kh2 Qe1 28.g4 Qf1 29.gxf5 Ne1  0-1

