[Event "Izt"] [Site "masterchessopen.com Palma de Majorca (Spain)"] [Round "0"] [White "Portisch Lajos (HUN)"] [Black "Polugaevsky Lev A (RUS)"] [Result "0-1"] [WhiteElo "2523"] [BlackElo "2585"] [ECO "E47"] [Opening "Nimzo-Indian: 4.e3 O-O 5.Bd3"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 Nc6 9.a3 Ba5 ( 9...Bxc3 10.bxc3 Qc7 { ?/= } ) 10.Qd3 ( 10.Ba2 { ?/= } ) 10...a6 11.Rd1 b5 12.Ba2 Bb6 13.Qc2 ( 13.dxc5 Qxd3 14.Rxd3 Bxc5 { = } ) 13...c4 14.Qe2 ( 14.Bd2 { !? } 14...Bb7 15.Ne4 { = } ) 14...Qe8 15.b3 cxb3 16.Bxb3 Bb7 17.e4 e5 { ! } 18.dxe5 Nxe5 19.Nxe5 Qxe5 20.Bb2 Bd4 { ! } 21.Rxd4 { ? } ( 21.Bd5 { ! } 21...Bxc3 ( 21...Bxd5 22.Rxd4 { ! } ) ( 21...Nxd5 22.Rxd4 Qxd4 23.Nxd5 Qc5 24.Qg4 f6 25.Nxf6+ Kh8 26.Qxg7+ Kxg7 27.Nd7+ { ± } ) 22.Bxc3 Qxc3 23.Bxb7 Ra7 24.Bd5 Rd7 { =/? } ) 21...Qxd4 22.Re1 Rfe8 23.e5 Qg4 { ! } 24.f3 ( 24.Qxg4 Nxg4 25.Nd5 Rad8 { ??+ } ) 24...Qf4 25.g3 Qd4+ 26.Kf1 Qc5 27.Nd1 Bd5 28.Qc2 Qxc2 29.Bxc2 Nd7 30.f4 Bc4+ 31.Kg1 Nc5 32.Nf2 Rad8 33.Bc3 Nd3 { ??+ } 34.Bxd3 Bxd3 35.Ba5 Rd7 36.g4 Bc2 37.Rc1 Rc8 38.f5 Rd5 39.e6 fxe6 40.fxe6 Re5 41.Nd3 Rxe6 42.Nb4 Re2 43.Kf1 Rxh2 44.Kg1 Rh1+ {#R} 0-1