[Event "Ch Vietnam"] [Site "masterchessopen.com - Dalat City (Vietnam)"] [Date "2004.03.13"] [Round "3"] [White "Dao Thien Hai (VIE)"] [Black "Tu Hoang Thong (VIE)"] [Result "1-0"] [WhiteElo "2601"] [BlackElo "2499"] [ECO "A53"] [Opening "Old Indian: 3.Nf3 Nbd7"] { Dao Thien Hai (VIE) +2 =0 -0 } 1.d4 { 1 } 1...Nf6 2.c4 d6 3.Nf3 Nbd7 4.Nc3 e5 5.e4 Be7 6.Be2 O-O 7.O-O c6 8.Re1 ( 8.h3 a6 9.a3 b5 10.Qc2 Re8 11.Rd1 Qc7 12.Be3 Bb7 13.Rac1 Bf8 14.dxe5 dxe5 15.Qb1 b4 16.axb4 Bxb4 17.Nd2 Bc5 18.Bxc5 Nxc5 19.b4 Ne6 20.c5 a5 21.Nc4 axb4 22.Qxb4 Ba6 23.Qb6 Bxc4 24.Bxc4 Qc8 25.Bxe6 Rxe6 26.Qb4 Nh5 27.Rd6 Nf4 { ...1-0, Dao Thien Hai 2475 - Ismail Ibrahem Y 2105 , Szeged 1994 Ch World (juniors) (under 18) } ) 8...Re8 9.Bf1 a6 ( 9...Bf8 10.Rb1 b6 11.b4 exd4 12.Nxd4 Bb7 13.f3 d5 14.b5 cxb5 15.cxd5 b4 16.Nce2 Nxe4 17.fxe4 Rxe4 18.Nc6 Bc5+ 19.Kh1 Qf6 20.Bb2 Qh6 21.Ng1 Bd6 22.Nh3 Nc5 23.Qc2 Rae8 24.Rxe4 Rxe4 25.Rd1 a5 26.Bd4 Re8 27.Bxc5 Bxc5 28.Nxa5 Bc8 29.Nb3 { ...1-0, Spraggett Kevin 2521 - Day Lawrence A 2319 , Brantford 1999 Ch Canada } ) 10.Rb1 ( 10.a4 a5 11.Qc2 Bf8 12.h3 exd4 13.Nxd4 g6 14.Bf4 Qc7 15.Rad1 Nc5 16.Bg5 Nfd7 17.Be3 Bg7 18.f4 Qb6 19.g4 Nf6 20.Bf2 Qb4 21.f5 Nfd7 22.g5 Ne5 23.b3 Nf3+ 24.Nxf3 Qxc3 25.Qxc3 Bxc3 26.Re3 Bb4 27.fxg6 hxg6 28.e5 dxe5 29.Rxe5 Ne6 { ...1-0, Reshevsky Samuel H 2460 - Haik Aldo 2363 , New York 1984 It (open) } ) ( 10.h3 Bf8 11.Bg5 h6 12.Bh4 b5 13.a3 Bb7 14.cxb5 cxb5 15.d5 Be7 16.Bg3 Nf8 17.Nd2 Qb8 18.a4 b4 19.Na2 a5 20.Bb5 Rc8 21.Nc1 N8d7 22.Ncb3 Nc5 23.Nxc5 Rxc5 24.f3 Ba6 25.Bxa6 Rxa6 26.Bf2 Rc8 27.Qe2 Ra8 28.Rec1 Bd8 29.Rc4 Rxc4 { ...1-0, Gurevich Mikhail 2620 - Hamed Ahmed 2320 , Tanta 1997 It (open) } ) 10...Qc7 11.b4 { ?/= } ( 11.a3 b5 12.b4 exd4 13.Qxd4 Ne5 14.Nxe5 dxe5 15.Qd2 Be6 16.Qc2 Nd7 17.Nd1 Rac8 18.Ne3 Qb8 19.c5 Rcd8 20.Nf5 Bf8 21.Bg5 f6 22.Be3 g6 23.Ng3 Be7 24.a4 Nf8 25.axb5 axb5 26.Ra1 Qc7 27.Ra6 Ra8 28.Rea1 Rxa6 29.Rxa6 Qb7 30.Ra3 Ra8 { ...1-0, Frias Victor J 2493 - Quinteros, New York 1986 It (open) } ) ( 11.d5 cxd5 12.cxd5 b5 13.Bd2 Nb6 14.a4 bxa4 15.Nxa4 Nxa4 16.Qxa4 Bd7 17.Qa3 Bb5 18.Rbc1 Qb8 19.Ba5 Bxf1 20.Kxf1 Qb5+ 21.Kg1 Rec8 22.Nd2 Ne8 23.b3 Rxc1 24.Rxc1 Bg5 25.Rc4 Bxd2 26.Bxd2 f5 27.exf5 Qxd5 28.Qc1 Qd3 29.Qc2 Qe2 30.h3 Kf8 { ...1-0, Luczak Andrzej 2370 - Espig Lutz 2470 , Makarczyk 1978 It } ) 11...Bf8 ( 11...exd4 12.Nxd4 Ne5 13.Qc2 Bd7 14.Bf4 Rac8 15.Nb3 Be6 16.Nd1 b5 17.Ne3 Nh5 18.Bg3 Nxg3 19.hxg3 Qa7 20.Rbc1 bxc4 21.Nxc4 Nxc4 22.Bxc4 d5 23.Bd3 Bxb4 24.Rf1 g6 25.exd5 Bxd5 26.Bc4 Rcd8 27.Bxd5 cxd5 28.Qd3 Rd6 29.Rc2 Qb6 30.Rd1 d4 31.Rc4 { ...0-1, Ho Andrew 2305 - Spraggett Kevin 2530 , Winnipeg 1994 It (open) } ) ( 11...b6 12.Bg5 Bb7 13.h3 Bd8 14.dxe5 dxe5 15.Be3 Be7 16.Nd2 h6 17.Na4 Nh7 18.c5 b5 19.Nb6 Rad8 20.Qc1 Bg5 21.Nb3 Bxe3 22.Qxe3 Ng5 23.Red1 Nf6 24.f3 Bc8 25.Nxc8 Rxd1 26.Rxd1 Rxc8 27.Qd2 Ne6 28.Qd6 Qxd6 29.Rxd6 Kf8 30.h4 Ke7 31.g3 { ...1/2-1/2, Lapienis Donatas 2294 - Piesina Gintautas 2398 , Vilnius 1999 Ch Lithuania } ) 12.a3 ( 12.d5 c5 13.a3 cxb4 14.axb4 b5 15.Qb3 bxc4 16.Qxc4 Qxc4 17.Bxc4 Nb6 18.Bf1 Bg4 19.Be3 Rec8 20.Bxb6 Rxc3 21.Nd2 Bd7 22.Rec1 Rxc1 23.Rxc1 g6 24.Rc7 Bb5 25.f3 Ne8 26.Rc3 Bh6 27.Nb1 f5 28.Na3 Bxf1 29.Kxf1 fxe4 30.fxe4 Rb8 31.Rc6 Nf6 { ...1-0, Tzermiadianos Andreas 2420 - Bagaturov Giorgi 2485 , Athens 1997 It (open) "Acropolis" } ) ( 12.h3 b5 13.a4 exd4 14.Nxd4 c5 15.bxc5 dxc5 16.Nf5 b4 17.Nd5 Nxd5 18.cxd5 Nf6 19.Qf3 Nxd5 20.exd5 { 1/2-1/2, Vera Reynaldo 2495 - Zapata Alonso 2530 , Linares 1992 It } ) ( 12.Bd2 b6 13.d5 c5 14.a3 g6 15.Na4 Rb8 16.Rb2 Bg7 17.Qb1 h6 18.g3 Kh7 19.bxc5 bxc5 20.Bd3 Rf8 21.Nh4 Ng8 22.Rxb8 Nxb8 23.Qb6 Qxb6 24.Nxb6 Bf6 25.Nxc8 Rxc8 26.Nf3 Nd7 27.Rb1 Bd8 28.Ne1 Rb8 29.Rxb8 Nxb8 30.f4 f6 31.Nc2 Kg7 { ...1-0, Dorfman Josif D 2608 - Perez Flavio 2205 , Monte Carlo 3. 2.2004 It (sheveningen) } ) ( 12.Bg5 h6 13.Bh4 g5 14.Bg3 Nh5 15.dxe5 dxe5 16.Nxe5 Nxg3 17.Nxd7 Bg7 18.hxg3 Bxc3 19.Qf3 Bxe1 20.Nf6+ Kf8 21.Nxe8 Bxf2+ 22.Kxf2 Kxe8 23.Qf6 Qe7 24.Qxh6 Qe5 25.Rd1 Be6 26.Qh5 a5 27.bxa5 Qc5+ 28.Ke1 Qxa5+ 29.Rd2 Ke7 30.Qd1 Qe5 31.Qb3 b5 { ...0-1, Knaak Rainer 2520 - Espig Lutz 2480 , Halle 1976 It } ) 12...b6 ( 12...exd4 13.Nxd4 g6 14.Bg5 Bg7 15.Qd2 b5 16.Rbc1 c5 17.Nb3 bxc4 18.Bxc4 Nb6 19.Nd5 Nbxd5 20.Bxd5 Nxd5 21.exd5 Rxe1+ 22.Rxe1 Bd7 23.bxc5 dxc5 24.d6 Qb6 25.Qd5 Re8 26.Rxe8+ Bxe8 27.d7 Bxd7 28.Qa8+ Bf8 29.Be7 { 1-0, Flear Christine 2185 - Bricard Emmanuel 2453 , Cannes 1988 } ) ( 12...g6 13.h3 Bg7 14.Bg5 b6 15.Qd2 Bb7 16.d5 c5 17.Rb3 Nf8 18.bxc5 bxc5 19.Reb1 Ra7 20.Qb2 Ba8 21.Be3 Re7 22.Ne1 Rb7 23.Bd3 Qb8 24.Rb6 Rec7 25.Qb3 N8d7 26.Rxb7 Rxb7 27.Qa4 Rxb1 28.Nxb1 Qb6 29.Nd2 Bb7 30.Nb3 Qc7 31.Na5 Kf8 32.Bd2 { ...1-0, Banas Jan 2375 - Pietinen Pekka 2084 , Kuopio 1992 It "Heart of Finland" } ) 13.Bd2 ( 13.Bb2 g6 14.Qc2 Bg7 15.Rbd1 Qb8 16.h3 Ra7 17.Bc1 Qa8 18.Be3 Bf8 19.Nd2 Rc7 20.Nb3 a5 21.Ra1 Bb7 22.f3 Rcc8 23.Qf2 c5 24.dxc5 dxc5 25.bxa5 bxa5 26.a4 Qa7 27.Red1 Nb8 28.Rab1 Ba8 29.Nb5 Qb6 30.Rd5 Na6 31.Rbd1 Nxd5 32.cxd5 Bd6 { ...1-0, Darga Klaus 2453 - Heidenfeld Mark 2368 , Germany 1999 Bundesliga (2nd) South 1998/99 } ) 13...exd4 { N } ( 13...Bb7 14.d5 Rac8 15.Qb3 h6 16.Rec1 Qb8 17.Ne1 Qa8 18.f3 Be7 19.Be3 cxd5 20.cxd5 Nh5 21.Nd3 Bg5 22.Bxg5 hxg5 23.Nb2 Qa7 24.Ncd1 Qb8 25.Qe3 f6 26.g3 Rxc1 27.Rxc1 Rc8 28.Bh3 Rxc1 29.Qxc1 Qd8 30.Ne3 g6 31.Nec4 Nb8 32.Qe3 b5 33.Be6+ { ...1/2-1/2, Marzik Hans - Birke Matthias Dr 2280 , Baden-Wuerttemberg 1991 Oberliga Baden 1990/91 } ) 14.Nxd4 { } 14...Bb7 15.Nf5 g6 16.Nh6+ Kg7 17.h3 Re6 18.Rb3 { ?! } ( 18.Bg5 { !? } 18...Rae8 19.Rc1 Qb8 20.Qd2 { } ) 18...Rae8 19.Qa1 d5 { ?! } ( 19...b5 { !? } 20.Rc1 Qd8 21.a4 bxa4 { } ) 20.cxd5 cxd5 21.Rc1 dxe4 { ?! } ( 21...Qe5 { !? } 22.exd5 R6e7 23.Rd1 Kh8 { } ) 22.Nxe4 Qe5 23.Nxf6 Nxf6 24.Bc3 Qf4 { ? } ( { ? } 24...Qg5 25.Ng4 Be7 26.Be5 Kg8 { } ) 25.Ng4 Be7 26.Be5 Qf5 27.Rc7 Bd5 28.Re3 Bd8 { ?! } ( 28...h5 { !? } 29.Be2 Qg5 30.Rxe7 R8xe7 { } ) 29.Bd3 Qg5 30.Rc8 { } {#r} 1-0