(13) Walters,K (1512) - Yun,J (1602) [B76]
Berkeley Marathon San Francisco, CA (2), 16.07.2004

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f3 Bg7 7.Be3 0-0 Diagram

8.Qd2 [ Obviously I can't claim that white is mistaken for not playing 8.Bc4 ] 8...Nc6 9.Be2 [ 9.Bc4 Bd7 10.0-0-0 Qb8 Diagram

11.Bb3 ( 11.h4 b5 12.Bd5 Rc8 13.Bxc6 ( 13.Kb1 b4 14.Nce2 Nxd5 15.Nxc6 Rxc6 16.exd5 Ra6 17.Bd4 Qb5 18.Bxg7 Rc8 19.b3 Kxg7 20.g4 h5 21.Nc1 Kg8 22.Rhg1 Rc3 23.Qf4 Kf8 24.gxh5 Bf5 25.Qxf5 1-0 Mikhalchishin,A-Shirov,A/Klaipeda 1988/[(M\1989) (Golubev)] (25)) 13...Bxc6 14.h5 b4 15.Nce2 Bd7 16.hxg6 fxg6 17.Bh6 Bh8 18.g4 a5 19.Kb1 a4 20.Nc1 Rc4 21.Qh2 Qe8 22.Nf5 Qf7 23.Ne3 Rc6 24.Nd3 Be6 25.Nxb4 Rb6 26.a3 Rxb4 27.axb4 a3 28.c3 Ba2+ 29.Kc1 Bb3 30.bxa3 Bxd1 31.Nxd1 Rxa3 32.Kb1 Nd7 33.Bc1 Rb3+ 34.Kc2 Ne5 35.Qxh7+ Qxh7 36.Rxh7 Rxc3+ 37.Kxc3 Kxh7 38.b5 Nxf3+ 39.Kc4 Kg8 40.Kd5 Kf7 41.b6 Ne5 42.Bb2 e6+ 43.Kxd6 Nc4+ 44.Kc6 Bxb2 45.Nxb2 Nxb6 46.Kxb6 Kf6 47.Nd3 Kg5 48.Nf2 Kf4 49.Kc6 Kf3 50.Kd6 Kxf2 51.Kxe6 Kf3 52.e5 1-0 Leko,P-Tikhonov,Y/Duisburg Wch-jr 1992/[NiC YB\35-29 (Golubev)] (52)) 11...a5 12.Ndb5 a4 13.Bxa4 Rc8 14.Kb1 Na5 15.Bb3 Nc4 16.Qe2 Nxe3 17.Qxe3 Rc5 18.Nd4 Qa7 19.a3 Ra5 20.Qd2 Ne8 21.Nd5 e6 22.Nb4 Nc7 23.c3 Na6 24.Ndc2 Nc5 25.Qxd6 Bb5 26.Ba2 Na4 27.Qc7 Be8 28.Rd8 Bf6 29.Rxa8 Qxa8 30.Qf4 Qd8 31.Qe3 Qc7 32.f4 Nb6 33.e5 Be7 34.Nd4 Nc4 35.Bxc4 Qxc4 36.Rd1 Ba4 37.Qd3 Qc8 38.Rd2 Qf8 39.g3 Rc5 40.Qe4 Rc7 41.Rd3 Qc8 42.g4 Bd7 43.Nbc2 Rc5 44.Qe1 Qc7 45.h4 h6 46.g5 h5 47.b4 Rc4 48.Ne3 Rc6 49.Nxc6 Bxc6 50.Rd4 1-0 Karpov,A-Velimirovic,D/Portoroz/Ljubljana 1975/[NiC YB\35-24 (Golubev)] (50)] 9...d5 Diagram

10.Rd1 [ 10.Nxc6 bxc6 11.e5 Nd7 ( 11...Ne8 12.f4 f6 13.exf6 Bxf6 14.0-0 Be6 15.Rad1 Nd6 16.b3 Qc7 17.Bf3 Rad8 18.Bd4 Nf5 19.Bxf6 exf6 20.Rfe1 Bf7 21.Bg4 Nd6 22.Bf3 Rfe8 23.Qd4 Nf5 24.Qxf6 Qb6+ 25.Kh1 Rxe1+ 26.Rxe1 Rd6 27.Qg5 Qf2 28.Rg1 Qxc2 29.Na4 d4 30.Bd1 Qd2 31.Nc5 Bd5 32.Bf3 Bxf3 33.gxf3 Qc3 34.Ne4 Qxf3+ 35.Qg2 Qxg2+ 36.Kxg2 Re6 37.Kf3 Nh4+ 38.Kg4 Rxe4 39.Kxh4 Rxf4+ 40.Kg3 Rf5 41.Rd1 c5 42.b4 cxb4 43.Rxd4 a5 44.Rd8+ Kg7 45.Rd7+ Kh6 46.a3 bxa3 47.Rd4 Kg7 48.Ra4 Kf6 49.Rxa3 Ke6 50.Ra4 Kd6 51.Re4 Kc6 52.Re7 Rh5 53.h4 a4 54.Ra7 Kb5 55.Kg4 Kb4 56.Rb7+ Kc3 57.Ra7 Kb4 58.Rb7+ Rb5 59.Rxh7 a3 0-1 Pogrebissky,I-Chekhover,V/Leningrad 1939/URS-ch (59)) 12.f4 e6 ( 12...f6 13.Nxd5 fxe5 14.0-0 Kh8 15.Nb4 exf4 16.Bxf4 a5 17.Nd3 Ba6 18.Kh1 Nc5 19.Rad1 Nxd3 20.cxd3 Qd4 21.b3 a4 22.Be3 Qh4 23.Bg5 Qd4 24.Bf3 axb3 25.axb3 Rab8 26.b4 Bf6 27.Bxc6 Qxb4 28.Bxf6+ Rxf6 29.Qg5 Qd6 30.Be4 Rbf8 31.Rf3 Kg7 1/2-1/2 Rubel,I-Gufeld,E/Tashkent 1958/EXT 2001 (31)) 13.0-0 ( 13.0-0-0 c5 14.Nb5 f6 15.exf6 Bxf6 16.f5 gxf5 17.g4 Qb6 18.gxf5 a6 19.fxe6 axb5 20.exd7 Bxd7 21.Qxd5+ Be6 22.Rhg1+ Kh8 23.Qxc5 Qxc5 24.Bxc5 Rg8 25.Rxg8+ Rxg8 26.a3 Rg2 27.Bxb5 Rxh2 28.Bd4 Bxd4 29.Rxd4 Kg7 30.a4 Kf6 31.a5 Rg2 32.Bd3 Rg7 33.b4 Ke5 34.Rd8 h5 35.Rh8 Bg4 36.Kd2 Kd4 37.b5 1-0 Jackson,J-Burgin,R/IECG email 1995/E-Mail 2000 (37)) 13...Qa5 14.a3 Qc7 15.b4 f6 16.exf6 Bxf6 17.Rad1 Rf7 18.Na4 a5 19.Nc5 Nxc5 20.Bxc5 axb4 21.axb4 Ba6 22.Bxa6 Rxa6 23.Qe2 Ra2 24.Qxe6 Rxc2 25.f5 g5 26.Qe8+ Kg7 27.Rde1 d4 28.Re6 d3 29.Rxf6 Rxf6 30.Bd4 Qd6 31.Bxf6+ Kxf6 32.Qh8+ Kf7 33.Qxh7+ Kf6 34.Qg6+ Ke5 35.Qxd6+ Kxd6 36.f6 d2 37.f7 d1Q 38.f8Q+ 1-0 Steiner,L-Herzog,F/Moravska Ostrava 1933/EXT 2002 (38)] 10...Nxd4 11.Bxd4 only one game from here. Personally, I have a lot more respect for the d5 square than to allow any of this, though admittedly, my database search shows that Jason has some good company of course in avoiding 8.Bc4 [ 11.Qxd4?! Ng4?! ( 11...Nxe4 is what Fritz prefers) 12.Qd2 Nxe3 13.Qxe3 d4 14.Qd2 e5 15.Nd5 Be6 16.Bc4 Rc8 17.Bb3 Bxd5 18.Bxd5 Qh4+ 19.g3 Qh3 20.Bxb7 Bh6 21.Qe2 Rb8 22.Bd5 Be3 23.c4 h5 24.b3 Kg7 25.Qf1 Qc8 26.h4 a5 27.Rh2 a4 28.Rb1 Qc5 29.Qd3 f5 30.Rhb2 Qb4+ 31.Kf1 f4 32.Rg2 fxg3 33.Rxg3 Rf4 34.Kg2 Rxh4 35.Qc2 axb3 36.axb3 Qc3 37.Qa2 Kh6 38.Bf7 Rb6 39.Rh3 Rxh3 40.Kxh3 Rf6 0-1 Blanco Fernandez,J-Bajo Gutierrez,I/Asturias 1993/EXT 2002 (40)] 11...dxe4 12.Nxe4 [ I agree with Fritz, though I guess this might be a subject for John Watson to take up (I am following GM Alex Yermolinsky's footsteps lately, reading his "Chess Strategy in Action." I could be wrong, and I can't quite explain, but after either takeback white ends up with the inferior pawn structure. Fritz agrees with me that white should keep an extra pair of minors on. I guess it is according to principle, the weak pawns are more serious in the endgame, though the truth is that it depends upon the position. 12.fxe4 Diagram

] 12...Nxe4 13.fxe4 e5?! Diagram

[ If you ask me, black should prefer 13...Bxd4 14.Qxd4 Qxd4 15.Rxd4 In my experience, I greatly fear facing black in a Dragon endgame, that Is with his kinside serpent pawn structure intact the way it is here. True, the d6 pawn is gone, and that is solice for white, but in compensation, white's kingside pawns are compromised.] 14.Bc5?! [ Now I don't fear the endgame as much as white. I guess black can plan ..f5, given white's miserable kingside (which by the way I would have never allowed, playing the Yugoslav myself). Maybe I just have an irrational fear of the pawn skeleton of the mighty dragon, breathing fire. 14.Bf2 Qxd2+ 15.Rxd2 Bh6 16.Rd3 f5 17.Bf3 Diagram

Perhaps white can follow Nimzowitch and try to use a piece to blocade e5.] 14...Qh4+ I don't get why some Dragon players put their pawn on e5. What of the Bg7?? This seems to be a strange position. Fritz likes the text, but it allows black to open up the position for his Bg7 (by removing the e4 pawn). Certainly, white must try to keep the e-file ram pawns. 15.g3 Qxe4 16.0-0 Re8 17.Bb5 Diagram

17...Bh3?! [ Fritz wants to get rid of his silly bishop! 17...Bf8 18.Bxe8? Bxc5+ 19.Rf2 Qf3 20.Bxf7+ ( 20.Bb5?? Bxf2+ 21.Qxf2 Qxd1+) 20...Qxf7 ( 20...Kxf7?? 21.Qd5+ Be6 22.Qxf3+) 21.Qd8+ Kg7 22.Rdd2] 18.Bxe8 Bxf1 19.Bxf7+ Kxf7 20.Rxf1+ Kg8 21.Rd1 Qc6 22.Qd5+ Qxd5 23.Rxd5 e4 24.Bd4 Bh6 25.Rd7 b5 Diagram

26.Re7 [ 26.Rxa7 Re8 27.Kf2 Rf8+ a) 27...e3+? 28.Ke2 b4 29.a4 Rf8 (a) 29...bxa3?? 30.Rxa3 and e3 falls) 30.c3 (a) 30.Bxe3? Re8) 30...Rf2+ 31.Kd3 Rxb2; b) 27...Rd8 28.Be3; 28.Ke2] 26...Rd8 27.Rxe4?? [ 27.c3] 27...Rxd4 28.Re7 [ 28.Rxd4 Be3+] 28...Rd2 29.Rc7 a5 30.Rc8+ Bf8 31.Rb8 b4 32.Rc8 Rd1+ 33.Kg2 Ra1 34.a3 bxa3 35.bxa3 Rxa3 36.c4 Rc3 37.Ra8 Rxc4 38.Rxa5 h5 39.Ra6 Kh7 40.Rf6 Bg7 41.Rf7 Kh6 42.Kh3 Rc2 43.Rf1 g5 44.Rh1? [ 44.g4 was the only defense to mate. I give it only one question mark because the best "move" was probably to say "the r-word."] 44...g4+ 45.Kh4 Bf6# 0-1