[Event "31st World Open"]
[Site "Philadelphia USA"]
[Date "2003.07.03"]
[Round "4"]
[White "Langer,M"]
[Black "Ivanov,AV USA"]
[Result "0-1"]
[WhiteElo "2253"]
[BlackElo "2539"]
[ECO "B06"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Be3 Qb6 5.Rb1 d6 6.Nf3 Qc7 7.Qd2 Nd7 8.Bc4 e6
9.d5 Nb6 10.Bb3 exd5 11.exd5 c5 12.O-O Bd7 13.Ne4 Bf5 14.Ng3 Bg4 15.Ng5 Nf6
16.h3 Bd7 17.c4 O-O 18.Rfe1 a5 19.a3 a4 20.Ba2 Rfe8 21.Bf4 Rxe1+ 22.Rxe1 Re8
23.Rxe8+ Nxe8 24.Qe2 Nc8 25.Bb1 Qb6 26.Bc1 Nf6 27.Bd3 Qd8 28.Qf3 h6 29.N5e4 Nxe4
30.Nxe4 Qe7 31.Qe2 Bf5 32.g4 Bd7 33.Bf4 Qf8 34.Qd2 f5 35.Ng3 g5 36.Bxg5 hxg5
37.Qxg5 Qf6 38.Qh5 Qh6 39.Qxh6 Bxh6 40.Nxf5 Bc1 41.Ne3 Bxb2 42.Nc2 Na7 43.f4 b5
44.Kf2 bxc4 45.Bxc4 Bb5 46.Ba2 Bd3 47.Ne1 Bd4+ 48.Kf3 Bf1 49.Bb1 Nb5 50.Bc2 Nc3
51.Nd3 Nxd5 52.Nf2 Nc3 53.f5 Bb5 54.Nd3 Bc6+ 55.Kf4 Nd5+ 56.Kg5 Kg7 57.Ne1 Bf6+  0-1

