[Event "It (open)"] [Site "masterchessopen.com Vienna (Austria)"] [Round "1"] [White "Sprenger Jan Michael (GER)"] [Black "Gratze Michael (AUT)"] [Result "1-0"] [WhiteElo "2477"] [BlackElo "2089"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] { } 1.e4 { 1 } 1...e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Nc6 { ?/= } 12.a4 ( 12.d5 Na7 13.Nbd2 Bd7 14.a4 Qc7 15.Nf1 Rae8 16.Be3 Nc8 17.N1d2 Bd8 18.Qe2 Qb7 19.Ra2 h6 20.Rea1 Bb6 21.axb5 axb5 22.b3 Ne7 23.b4 c4 24.Bxb6 Qxb6 25.Ra6 Qb8 26.Qe3 Nc8 27.Nh4 Re7 28.Nf1 Ne8 29.Ng3 Nc7 30.R6a2 Kh7 31.Ngf5 Ree8 { ...1-0, Bologan Viktor 2668 - Sulskis Sarunas 2571 , Ohrid 2001 Ch Europe } ) ( 12.Nbd2 Qc7 13.dxc5 dxc5 14.Nf1 Be6 15.Ne3 Rad8 16.Qe2 c4 17.Nf5 Rfe8 18.Bg5 Nd7 19.Bxe7 Nxe7 20.Ng5 h6 21.Nxe6 fxe6 22.Ne3 Ng6 23.g3 Nf6 24.Red1 Rxd1+ 25.Rxd1 Rd8 26.Rxd8+ Qxd8 27.b3 cxb3 28.Bxb3 Nf8 29.c4 Qd7 30.Qc2 Qb7 31.cxb5 axb5 { ...1-0, Fischer Robert J 2760 - O'Kelly de Galway Alberic 2450 , Buenos Aires 1970 It } ) 12...Bd7 ( 12...b4 13.dxc5 dxc5 14.Qe2 Qc7 15.Nbd2 Nh5 16.Nc4 Be6 17.g3 g6 18.Ng5 Bxc4 19.Qxc4 Na5 20.Qe2 c4 21.Nf3 Rfd8 22.Be3 b3 23.Bd1 Rd3 24.Kg2 f6 25.Qf1 Rad8 26.Bh6 Qc6 27.Nh2 Ng7 28.Ng4 Nf5 29.Bf3 Nxh6 30.Nxh6+ Kg7 31.Ng4 Bc5 32.Nh2 { ...0-1, Tringov Georgi P 2490 - Sliwa Bogdan 2235 , Tel Aviv 1964 Olympiad } ) 13.d5 Na5 ( 13...Na7 14.axb5 axb5 15.b4 c4 16.Nxe5 dxe5 17.d6 Bxd6 18.Qxd6 Nc8 19.Rxa8 Nxd6 20.Rxd8 Rxd8 21.f4 Nb7 22.fxe5 Ne8 23.Nd2 Nc7 24.Nf3 Ne6 25.Rd1 Be8 26.Rxd8 Nbxd8 27.Kf2 Nc6 28.Be3 Kf8 29.Bb6 Ke7 30.Ke3 Kd7 31.Bd1 Kc8 32.Nd4 Nexd4 33.Bxd4 { ...1-0, Stein Leonid Z 2605 - Tarnowski Alfred, Bucharest 1961 It } ) 14.Nbd2 ( 14.Nxe5 dxe5 15.d6 Be6 16.dxe7 Qxe7 17.axb5 axb5 18.Nd2 c4 19.Qe2 b4 20.Nf3 b3 21.Bd1 Nd7 22.Ng5 Nc5 23.Qh5 h6 24.Nxe6 Qxe6 25.Bg4 Qc6 26.Be2 Qe6 27.Bg4 Qc6 28.Rd1 Nab7 29.Rxa8 Rxa8 30.Be2 Qxe4 31.Bf3 Qc2 32.Bd5 Rf8 33.Bxc4 Nd6 { ...1-0, Zapata Alonso 2495 - Ree Hans 2450 , Jakarta 1986 } ) ( 14.b4 Nb7 15.Be3 Qc7 16.Nbd2 Rfc8 17.Ra2 a5 18.bxa5 Nxa5 19.axb5 Bxb5 20.c4 Be8 21.Qa1 Bd8 22.Rb1 Rcb8 23.Ne1 Nd7 24.Rb5 Qc8 25.Bd1 { 1/2-1/2, Ljubojevic Ljubomir 2615 - Romanishin Oleg M 2590 , Tilburg 1985 It "Interpolis" (cat.15) } ) ( 14.axb5 axb5 15.Nxe5 dxe5 16.d6 Bc6 17.dxe7 Qxe7 18.Nd2 Nb7 19.Rxa8 Rxa8 20.Qe2 { 1/2-1/2, Kurajica Bojan 2490 - Padevsky Nikola 2460 , Sarajevo 1970 It } ) ( 14.b3 Qc7 15.Nbd2 g6 16.Ra2 Rfb8 17.b4 Nb7 18.a5 Nh5 19.Nf1 Bf6 20.Ne3 Bg7 21.Bd3 Rc8 22.Bf1 cxb4 23.cxb4 Nd8 24.g3 Nf6 25.Qd3 Ne8 26.Bd2 f6 27.h4 Nf7 28.Kh2 Bh6 29.Bh3 Bxh3 30.Kxh3 Qd7+ 31.Kg2 Ng7 32.Rc1 Rxc1 33.Bxc1 Rc8 { ...1/2-1/2, Korneev Oleg 2565 - Kaiumov Dmitry D 2430 , Jakarta 1997 Ch World Cities } ) 14...g6 { N } ( 14...Qc7 15.Nf1 ( 15.b4 cxb4 16.cxb4 Rac8 { } ) 15...b4 ( 15...Rfb8 16.b4 Nc4 17.a5 Rc8 18.Bd3 cxb4 19.cxb4 Qd8 20.Qe2 Rc7 21.N3h2 Rac8 22.g4 h5 23.Kh1 hxg4 24.hxg4 Nh7 25.Ng3 Bg5 26.Kg2 g6 27.Rh1 Qf6 28.Rf1 Bf4 29.Be3 Qg5 30.Bb6 Rb7 31.Bxc4 Rxc4 32.Rab1 Rb8 33.Rb2 Rbc8 34.Rh1 { ...0-1, Morice Ludovic 2088 - Loizil Joel 1720 , Fouesnant 2000 It (open) } ) 16.Ne3 b3 17.Bb1 c4 18.Nf5 Bd8 19.Nh2 g6 20.Nh6+ Kh8 21.Kh1 Nh5 22.g4 Ng7 23.f4 exf4 24.Bxf4 f6 25.Rf1 Be7 26.Be3 Rae8 27.Bd4 Nb7 28.g5 fxg5 29.Nf7+ Kg8 30.Nh6+ Kh8 31.Nf7+ Kg8 32.Nh6+ Kh8 33.Rf7 Rxf7 34.Nxf7+ { ...1/2-1/2, Cabrilo Goran 2510 - Romanishin Oleg M 2550 , Stara Pazova 1988 } ) ( 14...c4 15.Nf1 Qc7 16.Ng3 Rfb8 17.axb5 Rxb5 18.Ba4 Rb7 19.Bg5 Nb3 20.Bxd7 Qxd7 21.Ra2 Nc5 22.Qe2 Nd3 23.Rb1 h6 24.Be3 Qb5 25.Nd2 a5 26.b3 Nc5 27.bxc4 Qd7 28.Rb5 a4 29.Bxc5 dxc5 30.Nb1 Ne8 31.Nf5 Bf8 32.Na3 g6 33.Ne3 Nd6 34.Ng4 { ...0-1, Hjartarson Johann 2550 - Romanishin Oleg M 2555 , Moscow 1987 It } ) ( 14...b4 15.cxb4 cxb4 16.b3 Qc7 17.Bb2 Nh5 18.Rc1 Nf4 19.Bb1 Qb8 20.Nc4 Nxc4 21.Rxc4 Rc8 22.Nd2 a5 23.Rxc8+ Qxc8 24.Qf3 Qa6 25.Kh2 Rc8 26.Rc1 Rxc1 27.Bxc1 Qc8 28.Nc4 Ng6 29.Be3 Nh4 30.Qh5 h6 31.Nxd6 Bxd6 32.Qxh4 f6 33.Qh5 Qc3 34.Qd1 { ...1-0, Joecks Christian 2340 - Hennings Artur 2345 , Germany 1994 Oberliga North 1994/95 } ) 15.b4 cxb4 { N } ( 15...Nb7 16.a5 Rc8 17.Nf1 Nh5 18.Bh6 Re8 19.Qd2 Bf8 20.Bg5 Be7 21.Be3 Bf6 22.Rac1 Bg7 23.Ng3 Nxg3 24.fxg3 Qc7 25.Bd3 cxb4 26.cxb4 Qb8 27.Rcd1 Nd8 28.g4 f6 29.Rc1 Nf7 30.Rxc8 Rxc8 31.Rc1 Bf8 32.Kf1 Be7 33.Ke2 Bd8 34.Rc3 Qb7 35.Rxc8 { ...1/2-1/2, DeFirmian Nick E 2595 - Torre Eugenio 2560 , Biel 1989 It } ) 16.cxb4 Nc4 { ?! } ( 16...Nb7 { !? } 17.axb5 Bxb5 18.Nb1 Qc7 { } ) 17.Nxc4 { ! } ( 17.Bb3 { ? } 17...Qc7 18.a5 Rfc8 19.Ra2 { } ) 17...bxc4 18.Nxe5 { ? } ( { ? } 18.Re3 Qb8 19.Rb1 Rc8 20.Rc3 { } ) 18...dxe5 19.d6 Be6 { ?! } ( 19...Nh5 { !? } 20.dxe7 Qxe7 21.Bb2 Rfd8 { } ) 20.dxe7 Qxe7 21.Bg5 Rfd8 22.Qc1 c3 { ?! } ( 22...Rab8 { !? } 23.Re3 h6 24.Bxh6 Ne8 { } ) 23.Re3 h6 24.Bxh6 Nh7 25.Rxc3 Qxb4 26.Bd2 Qe7 27.Bd3 Rd6 28.Be3 Qd8 29.Be2 Qh4 30.Rc5 f6 { ?! } ( 30...Nf6 { !? } 31.Bg5 Qh8 32.f3 Ne8 { } ) 31.Rc6 Rad8 32.Rxd6 Rxd6 33.Qc7 Rd7 34.Qc6 { } {#r} 1-0