[Event "Alekhine mem"]
[Site "Moscow"]
[Date "1959.??.??"]
[Round "11"]
[White "Portisch, Lajos"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "E63"]
[PlyCount "84"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nc6 7.Nc3 a6 8.h3 Rb8 9.Nd5 Nd7 10.Bg5 h6 11.Be3 e6 12.Nc3 Ne7 13.Qc1 Kh7 14.Rd1 b5 15.c5 Bb7 16.a3 Nf6 17.Bf4 Ned5 18.Nxd5 Bxd5 19.Nd2 Bxg2 20.Kxg2 g5 21.Be3 Nd5 22.Nf3 f5 23.Bxg5 hxg5 24.Nxg5+ Kh8 25.Nxe6 Qe7 26.Nxf8 Rxf8 27.cxd6 cxd6 28.e3 f4 29.exf4 Qe4+ 30.Kg1 Nxf4 31.gxf4 Rg8 32.Kf1 Re8 33.Kg1 Rg8 34.Kf1 Re8 35.Kg1 Bxd4 36.Rxd4 Qxd4 37.Qc3 Qxc3 38.bxc3 Rc8 39.Rc1 d5 40.Kf1 Rc4 41.Ke2 Rxf4 42.Rf1 Re4+ 1/2-1/2