(17) Steven Svoboda - David Barton
BCC July-Aug Marathon Berkeley (3), 23.07.2004
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 Nbd7 6.Nf3 0-0 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.0-0 Nxc3 12.Rxc3 e5 Diagram
According to MCO-13, Queen's Gambit Declined Orthodox Variation13.Qc2 exd4 14.exd4 Nb6 15.Re1 Qd8 [ 15...Qf6 16.Bb3 Bf5 17.Qd2! ( 17.Qe2?! Rad8 18.Qe7 Qxe7 Diagram ( 18...Rd7? 19.Qxf6 ( 19.Qa3 Nc8 20.Rce3 Qd6 ( 20...g6 21.h3 h5 22.Ne5 Rc7 ( 22...Rxd4 23.Nxf7 Rxf7 24.Re8+ Kg7 25.Bxf7 Qxf7 ( 25...Nd6 26.R1e7 Nxf7 27.Rxf7+ Qxf7 28.Re7+-) 26.Rxc8 Bxc8 27.Re7+-) 23.g4 hxg4 24.hxg4+/- 1-0 Stoltz-Rellstab/SWE-DEU m 1948 (37)) 21.Qa5 Bg6 22.Ne5 ( 22.Qg5!?+/=) 22...Rdd8 23.Nf3 ( 23.Nxg6 hxg6 24.Re4 Rd7 25.h3+/=) 23...Qd7 ( 23...Rd7) 24.h4 Kh8 25.h5 b6 26.Qg5 f6 27.Qh4+/= 1-0 Foerder,H-Vaitonis,P/Buenos Aires olm f-A 1939 (67)) 19...gxf6 20.h3+/- 1/2-1/2 Kmoch,H-Doesburgh,G/Hilversum bondsweds 1940 (76)) 19.Rxe7 Bc8 Diagram ( 19...Rd7 20.Rce3 Nc8 21.Rxd7 Bxd7 22.h3 Re8= ( 22...g6 23.Ne5+/= 1-0 Bolbochan,J-Raud,I/Buenos Aires olm f-A ,HCL 1939 (52)) ) 20.Rc5 h6 21.h3 Nd7 22.Rf5 Nf6 23.Rfe5+/= 1-0 Broder,I-Vidmar,M/YUG/K 1938 (53)) 17...Rad8 18.Ne5 Qd6 19.Nxf7 Rxf7 20.Bxf7+ Kxf7 21.Rf3 Kg6 22.h4 Qf6 23.Re5 Nc4 24.Qf4+- 1-0 Chekhov,V-Campora,D/Moscow(6) 1989 (27)] 16.Bb3 Nd5 Diagram 17.Rc5 [ 17.Bxd5 Qxd5 18.Re5 ( 18.Rc5 Qd6 ( 18...Qd8 19.Ng5 g6 20.Qe4 ( 20.Qc3 Bf5 21.Rxf5 gxf5 22.Qg3 Qxd4 23.Ne6+ Qg4 24.Nxf8 Qxg3 25.fxg3 Kxf8 26.Rd1 Ke7-/+ 0-1 Farago,I-Westerinen,H/Wuppertal 1986 (47)) 20...h6 21.Nf3 Be6 22.Qf4 Kg7 23.b3 Bd5 24.Rc3 Qf6 25.Qxf6+ Kxf6= 1/2-1/2 Garcia,G-Ree,H/Wijk aan Zee(7) 1979 (49)) 19.Rce5 ( 19.Qe4 h6 20.Qe7 Qxe7 21.Rxe7 Rd8 22.h3 Kf8 23.Rce5 Rb8 24.Rc7 Be6 25.Re3 Rd7 26.Rxd7 Bxd7= 1/2-1/2 Singleton,M-Watson,R/cr ENG-ch IC/88/#2/ 1986/Inf 88 (51)) 19...h6 Diagram 20.h3 ( 20.d5?! Bd7 ( 20...cxd5 21.Nd4 ( 21.Qb3 Be6 22.Nd4 Rac8 23.h3 Qc5=/+) 21...Bd7=/+) 21.Qb3 b6 22.dxc6 ( 22.h3 Rae8 23.Rxe8 1/2-1/2 Schulien,C-Ben Finegold/Columbus Futurity 1986 (23) ( 23.dxc6 Bxc6=; 23.Rxe8 Rxe8 24.Rxe8+ Bxe8 25.Qe3 Bd7 26.dxc6 Bxc6 27.Nd4 1/2-1/2 Callens,P-Bex,J/cr 1992 (27)) ) 22...Qxc6 23.Nd4 Qg6= 0-1 Arpal-Brillas/cr ch E teams 1984 (33)) 20...Be6 21.b3 Rad8 22.Qc3 Rfe8 23.b4= 1/2-1/2 Beier,P-Mohaupt,H/cr DDR-5Cup sf/9 1978 (40)) 18...Qd6 Diagram 19.Ng5!N a) 19.Rce3 h6 a1) 19...Bd7 20.Ng5 g6 (a1) 20...Qh6 21.Qb3 b6 22.f4 (a1) 22.Re7 Qxg5 23.Rxd7 Qf6=) 22...Rad8 (a1) 22...Qd6 23.Qd3 Qg6 24.Qxg6 fxg6 25.Re7 Rae8 26.Nf3 Rxe7 27.Rxe7 Rf7 28.Rxf7 Kxf7 29.Ne5+ (a1) 29.Ng5+ Kg8 (a1) 29...Kf6 30.Nxh7+ Kf5 31.Nf8 (a1) 31.g3 Ke4 32.Kf2 Kxd4=/+) 31...Be8 32.g3 Bf7 33.a3 Ke4 34.Kf2 Kxd4=) ) 29...Ke6 30.Kf2 Be8 31.Ke3 Kd5 32.b3+/=) 23.Re7 Qf6 24.Nxf7! Rxf7 25.Rxd7!+/-) 21.Qb3 (a1) 21.Qc4 Bf5 22.Re7) 21...b6 22.Re7 Be6 23.R7xe6 fxe6 24.Nxe6 Rf7 25.Ng5 Qf4 26.Nxf7 Qxf7 27.Qxf7+ (a1) 27.Re6 Rd8 28.Qc4 (a1) 28.Qe3 c5+/= 0-1 Feick,S-Israel,J/BL2N 1989 (42)) 28...Rd6 29.Re8+ Kg7 30.Qxf7+ Kxf7 31.Re4 c5 32.Kf1 cxd4 (a1) 32...Rxd4 33.Rxd4 cxd4 34.Ke2 Ke6 35.Kd3 Kd5 36.f4 a5 37.a4 Kc5 38.g4 Kd5 39.b3 h6 40.h4 h5 41.g5 Kc5 42.f5+-) 33.Ke2 d3+ 34.Kd2 Rd5 35.Re3+/-) 27...Kxf7 28.f3 Rd8 29.Re4+/-; a2) 19...Bg4 20.Ng5 Qg6 21.Qxg6 fxg6 22.f3 Bd7 23.Ne4+/= 1-0 Kasparov RISC 2500-Gideon 3 1/Wels-Wiesene 1993 (78); 20.Re7 (a) 20.Qc3 Be6 21.h3 Rad8 1/2-1/2 Pirc,V-Gligoric,S/Ljubljana 1951/EXT 2002 (21)) 20...Rb8 21.Re8?! (a) 21.Qc5 Qxc5 22.dxc5 Be6 23.b3 Rfc8 24.Ne5 Kf8 25.Rxe6 (a) 25.Ng6+ fxg6 26.R7xe6 Rd8 (a) 26...Re8 27.Rxg6+/-) 27.Kf1 Rd2 28.Rf3+ Kg8 29.Re7+/-) 25...fxe6 26.Nd7+ Ke7 27.Nxb8 Rxb8 28.Rd3+/= 1/2-1/2 Leombruno-Luciani/cr ch 3e cat 1990 (48)) 21...Be6 22.Rxb8 Rxb8= 1/2-1/2 Cobo,E-Hooper,D/Helsinki 1952 (27); b) 19.Qe4 f6 20.Re7 Bd7 21.Qe2 (b) 21.Re3 Rae8 22.Re1 Rxe7 23.Qxe7 Qxe7 24.Rxe7 Rf7= 0-1 Forgo,F-Kliszek,J/cr 1992 (37)) 21...Rfe8 22.Rce3 Kf8 23.Rxe8+ Rxe8 24.Rxe8+ Bxe8= 1/2-1/2 Cunningham,P-Ruefenacht,M/Dubai olm 1986 (34); c) 19.h3 f6 20.Qb3+ Kh8 21.Re2 a5 22.Rce3 b5 23.Re7 Bd7 24.Qe3 Kg8 25.Qb3+ Kh8 26.Qc3+/=; 19...Qg6 20.Qxg6 hxg6 ( 20...fxg6 21.Re7 h6 22.Nf3 Rf7 23.Rce3 Bf5 24.g4 Rxe7 25.Rxe7 Bxg4 26.Ne5 Bf5 27.Rxb7 Be4 28.f3 Bd5 29.Nxg6 Bxf3 30.Ne7+ Kf7 31.Kf2 Bh1 32.Nd5+ Kg6 33.Nc7 Rf8+ 34.Kg1 Be4 35.Rxa7 Rb8 36.b3 Rb4 37.Kf2+/-) 21.Re7 f6 22.Ne4! ( 22.Nf3 Rf7=) 22...Rf7 23.Rxf7 Kxf7 24.d5 Bd7 ( 24...cxd5 25.Rxc8 Rxc8 26.Nd6+ Ke6 27.Nxc8+-) 25.Nc5 ( 25.Nd6+ Ke7 26.Nxb7 cxd5 27.Re3+ Kf8 28.Nc5 Bf5<=>) 25...Ke7?+/- ( 25...Bf5 26.dxc6 bxc6 27.h3+/=) 26.Re3+ Kd6 27.Nxb7+ Kc7 ( 27...Kxd5 28.Rd3+ Ke6 29.Nc5++-) 28.Re7 ( 28.dxc6 Kxc6 29.Na5+ Kb5 30.Nb3+/-) 28...cxd5 29.Nc5 ( 29.Rxg7 Re8 30.Kf1 Kc6 31.Na5+ Kd6 32.f4 Bb5+ 33.Kf2 Re2+ 34.Kf3 Rxb2 35.Nb7+ Ke6 36.a4 Be2+ 37.Ke3 Bc4 38.Nd8+ ( 38.Nc5+ Kf5<=>) 38...Kf5<=>) 29...Kd6?+- ( 29...Re8 30.Rxd7+ Kc6 31.Kf1 Kxc5 32.Rxa7+/- ( 32.Rxg7+/-) ) 30.Rxd7+ Kxc5 31.Kf1 a5 32.Ke2! ( 32.Rxg7!? g5 ( 32...Rb8 33.b3 ( 33.Rxg6 Rxb2 34.a4 Ra2 35.Rxf6 Rxa4 36.f4 Kd4 37.g4 Ra2 38.h4 a4 39.g5 a3 40.g6 Ke3 41.f5 ( 41.g7 Kf3=) 41...Kf3 42.Ke1 Ra1+ 43.Kd2 a2 44.Ra6 Rg1 45.Rxa2 Rg2+ 46.Kd3 Rxa2 47.g7+-) 33...g5 34.Ra7+/-) 33.Rf7 ( 33.Ke2 Rb8 34.b3 a4 35.bxa4 Rb2+ 36.Ke3 Rxa2 37.Rc7+ Kb6 38.Rf7 Kc5 39.Rxf6 Ra3+ 40.Ke2 Rxa4 41.Kf3+/=) 33...Rb8 34.b3+/-) 32...Kd4 33.Rxg7 Rb8 34.b3 Kc3 35.Rc7+? ( 35.Rxg6 d4 36.Rxf6 d3+ ( 36...Re8+ 37.Kf3 d3 38.Rc6+ Kd2 39.g4+-) 37.Kd1+-) 35...Kd4?+- ( 35...Kb2 36.Rc5 Ra8 ( 36...Kxa2 37.Rxa5+ Kxb3 38.Rxd5 Kc4 39.Rd6 Rf8 40.Ke3 Kc5 41.Rd1+/-) 37.Kd2 ( 37.Rxd5 Kxa2 38.Rb5 Kb2 ( 38...Ra6 39.Kd3 Kb2 40.Kc4+/-) ) 37...Kxa2 38.Kc2 d4=) 36.Rc6 ( 36.Rg7+/-) 36...Ke5 37.f4+ ( 37.Rc5?! a4 38.bxa4 Rb2+ 39.Ke3 Rxa2 40.f4+ Kd6 41.Ra5 Rxg2=; 37.Ra6 Rb5 38.Kd3 g5 39.h3+/-) 37...Kxf4 38.Rxf6+ Kg5 39.Rd6 Rb5 40.Ke3?+/- ( 40.Kd3 a4 41.bxa4 Ra5 42.Kc3+-) 40...a4 41.bxa4 Ra5 42.a3?= ( 42.h3 Kh6 43.Rf6 Rxa4 44.Rf2+/-) 42...Kh6 43.Rb6 Rxa4 44.Rb3 Kg5 45.Kd2 Kf5 46.Rf3+ Ke4 47.Rg3 Kf5 1/2-1/2 Dokutchaev,A-Deviatkin,A/Moscow 1999/CBM 70/[Tsesarsky] (47)( 47...Kf5 48.Kc2 d4 49.Kb3 Ra6 50.a4 ( 50.Kc4 Ke4©) 50...Ke4©) ] 17...b6? Diagram Out of Theory. No games found.. [ 17...Be6 is better 18.a3 Qf6 19.Qe4 Rfd8 20.Rcc1 Nc7 21.Bxe6 Nxe6 22.Rcd1 Rd5 23.Rd2 Rad8 24.Qe3 g6 25.Red1 Ng7 26.Ne5 Nf5 27.Qf4 Kg7 28.Nf3 h5 29.h3 R8d6 30.Kf1 Qd8 31.g4 hxg4 32.hxg4 Nh4 33.Ne5 Rf6 34.Qe3 Re6 35.Qf4 Rf6 36.Qe3 Re6 37.Qf4 f6 38.Nc4 g5 39.Qg3 f5 40.gxf5 Nxf5 41.Qg4 Qf6 42.Kg1 b5 43.Ne5 c5 44.Nf3 Nh6 45.Qg3 Re4 46.Qc7+ Nf7 47.Ne5 cxd4 48.Qxf7+ Qxf7 49.Nxf7 Kxf7 50.Kf1 Ke6 51.Re2 Rde5 52.Rxe4 Rxe4 53.f3 Rh4 54.Kg2 Kd5 55.b3 Rh7 56.Rc1 d3 57.Rc3 Kd4 0-1 Vukovic,S-Trifunovic,P/Belgrade 1948/EXT 2000 (57)] 18.Bxd5! [ avoiding the fork after 18.Rxc6 Nb4 though then 19.Qe4 Nxc6 20.Bc2 g6 21.Qxc6 Bg4 oh.. never mind {:)] 18...bxc5 [ In the day and age of wanton exchange sacrifice, black should have considered 18...cxd5 Diagram 19.Rc3 ( 19.Rc7 Bf5 20.Qc6 Rc8 21.Rxc8 Bxc8 22.Re5 Be6) 19...Be6 though his bishop is bad with little prospect of gaining anything but equality.] 19.Bxc6 Rb8 20.dxc5 White has gotten too much for the exchange 20...Qf6 21.Ne5! Bf5 22.Qc3 Be6?! [ 22...Rfc8 is probably better] 23.b4! Rfd8 24.b5 Qf4 25.a4?! Qd2? [ 25...Qxa4! 26.b6 Qa6 27.b7 ( 27.Ra1? axb6! holds due to the back rank threat) 27...Rxb7 and Black probably survives ( 27...f6 28.Bf3 fxe5? 29.c6 looks winning for White ( 29.Qxe5 is Fritz's choice, though it might be short-sighted 29...Bd7 ( 29...Re8 30.c6 Qb6) 30.c6 Bxc6 31.Qe6+ Kh8 32.Bxc6) 29...e4 30.Rxe4 Re8 31.Rxe6 Qa2 ( 31...Rxe6 32.c7) 32.Rxe8+ Rxe8 33.h3 Qb1+ 34.Kh2 Re1 Diagram 35.Qxe1! Qxe1 36.b8Q+ Kf7 37.Bd5+ Qe6 38.Qxa7+ Kf6) 28.Bxb7 Qxb7] 26.Qxd2 Rxd2 27.a5 Ra2 [ 27...Rc2 28.b6 axb6 ( 28...Rxc5? 29.bxa7) 29.cxb6] 28.a6 Kf8?! (Barton/Goldfarb(?)) 29.Bb7 Diagram 29...Re8 30.b6 axb6 31.cxb6 Bc8 32.f4 f6 33.Ng6+ hxg6 34.Rxe8+ Kxe8 35.Bxc8 Kd8 36.Bb7 1-0
