[Event "It (cat.10) \"] [Site "masterchessopen.com – Prague (Czech Republic)"] [Round "0"] [White "Kveinys Aloyzas (LTU)"] [Black "David Alberto (LUX)"] [Result "1-0"] [WhiteElo "2555"] [BlackElo "2588"] [ECO "C63"] [Opening "Spanish: Schliemann, 4.Nc3 Nd4"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nd4 5.Ba4 Nf6 ( 5...c6 6.Nxe5 { ! } 6...Qf6 ( 6...Nf6 7.O-O fxe4 8.Nxe4 Nxe4 9.Re1 { ! } 9...d5 10.d3 { ! ± } ) 7.Nd3 fxe4 8.Nxe4 Qg6 9.Ng3 d5 10.Nf4 Qf7 11.c3 Ne6 12.Nxe6 Bxe6 13.d4 { ± } ) 6.O-O { 6. d3 - Urday - Sinclair, Novi Sad 1990 } ( 6.d3 Bc5 { ?! } ( 6...Bb4 7.Nxe5 Qe7 { ? } ) 7.O-O Nxf3+ 8.Qxf3 fxe4 9.Nxe4 Be7 10.d4 { ± } ) ( 6.Nxe5 fxe4 7.O-O Bd6 { ! } 8.Nc4 Be7 9.Nxe4 Nxe4 10.Qg4 O-O 11.Qxe4 Nf3+ { ! } 12.gxf3 d5 { = } ) 6...Bc5 ( 6...fxe4 { ? } 7.Nxd4 exd4 8.Nxe4 { ! } 8...Nxe4 9.Qh5+ { +?? } ) ( 6...c6 7.exf5 { ! } ) 7.Nxe5 { 7. ?d4 - Kochyev - Gutman, Baku 1977 } ( 7.Nxd4 exd4 8.Nd5 O-O 9.d3 fxe4 10.Bg5 Be7 { ? } ) 7...O-O { 7... c6 - Kupreichik - Bellon, Barcelona 1984 7... b5? - Balanel - Korchnoi, Ploesti 1957 } ( 7...c6 8.b4 { ! } 8...Bb6 9.Nc4 Bc7 10.e5 { ± } ) ( 7...b5 { ? } 8.Nxb5 fxe4 9.c3 Nxb5 10.Bxb5 O-O 11.d4 { ± } ) 8.Nd3 ( 8.exf5 d5 { ? } ) 8...fxe4 { ! } ( 8...Bb6 9.e5 Ne4 10.Nd5 { ± } ) 9.Nxc5 d5 10.d3 { 10. ?b3 - Lehmann - Spassky, Vienna 1957 10. ?b3 - Georgiev - Inkiov, Bulgaria 1980/81 } ( 10.Bb3 Kh8 11.Bxd5 Nxd5 12.N5xe4 Nb4 { ! } 13.d3 Nbxc2 14.Bg5 Qd7 15.Rc1 Nb4 { ? } ) ( 10.Nb3 Bg4 11.f3 exf3 12.gxf3 Nxf3+ 13.Rxf3 Bxf3 14.Qxf3 Ne4 { ??+ } ) 10...Ng4 { 10... ?g4!? - Lehmann } ( 10...Bg4 11.Qd2 b6 { Lehmann } ) 11.N5xe4 ( 11.dxe4 { ? } 11...Qh4 12.h3 Nxf2 { ??+ } ) 11...dxe4 12.Nxe4 Qh4 13.h3 Ne5 { ! } ( 13...Nf3+ { ? } 14.gxf3 Qxh3 ( 14...Nh2 15.Kxh2 Qxh3+ 16.Kg1 Rxf3 17.Bb3+ Kh8 18.Qd2 { +?? } ) 15.fxg4 Bxg4 16.Ng5 { ! } 16...Qh4 17.Qe1 { ! } 17...Bf3 18.Qe6+ { +?? } ) 14.f4 { 14. ?b3 - Vukcevic - Matulovic, Sarajevo 1958 } ( 14.Bb3+ Kh8 15.Ng5 { ? } ( 15.f4 Bg4 16.Qd2 Ne2+ { ! } 17.Kh2 Rae8 { ??+ } ) 15...Nef3+ 16.gxf3 Bxh3 { ??+ } ) 14...Bg4 15.Qd2 ( 15.Qe1 { ? } 15...Nef3+ { ! } ) 15...Bf3 ( 15...Ne2+ 16.Kh2 { +?? } ) 16.Rf2 { ! } ( 16.Nc3 Rf6 17.Qf2 Rg6 18.Qxh4 Rxg2+ 19.Kh1 Rf2+ { = } ) ( 16.fxe5 Bxe4 { ! } 17.dxe4 Rxf1+ 18.Kxf1 Rf8+ 19.Kg1 Nf3+ 20.gxf3 Rxf3 { ? } ) 16...Bxe4 17.dxe4 Rad8 18.fxe5 Nf3+ 19.Rxf3 Rxf3 20.Qg5 { ? } ( 20.Qg5 { ! } 20...Qe1+ 21.Kh2 Rd1 22.gxf3 Qh1+ 23.Kg3 Rg1+ 24.Kh4 Rxg5 25.Kxg5 Qxf3 { ? } ) {#r} 1-0