US Senior Open 2009

(1) Unruh,Charles D. (2044) - Fritze,Skip (1535) [C41] US Senior 2009 (1), 05.09.2009 1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.Bc4 Be7 6.0-0 c6 7.a4 0-0 8.h3 exd4 9.Nxd4 Nc5 10.Re1 Kh8 11.b4 Ne6 12.Nf5 Nd7 13.Bb2 Ne5 14.Bb3 Qc7 15.Qd2 Bg5 16.Qxd6 Qxd6 17.Nxd6 Nd4 18.Rad1 Nxb3 19.cxb3 Be6 20.Ne2 Bf6 21.Nd4 Rad8 22.Nxe6 fxe6 23.Bxe5 Bxe5 24.Nf7+ 1-0

(2) Bradford,Joe (2453) - Unruh,Charles D. (2044) [A38] US Senior 2009 (2), 05.09.2009 1.d4 Nf6 2.Nf3 g6 3.c4 c5 4.g3 Bg7 5.Bg2 0-0 6.0-0 cxd4 7.Nxd4 Nc6 8.Nc2 d6 9.Nc3 Be6 10.b3 Qa5 11.Nd5 Rfc8 12.Bd2 Qd8 13.Nf4 Bf5 14.Ne3 Bd7 15.Rc1 Rab8 16.Re1 a6 17.Bc3 b5 18.Qd2 b4 19.Bb2 e5 20.Nd3 a5 21.Red1 Nd4 22.Bxd4 exd4 23.Nc2 Ng4 24.Nf4 Qf6 25.Qxd4 Qf5 26.Qxd6 Bb2 27.Nd4 Qc5 28.Qxc5 Rxc5 29.Rb1 Bc3 30.Nd5 Kg7 31.Nxc3 bxc3 32.Rbc1 a4 33.Rxc3 axb3 34.axb3 Ne5 35.f4 Ng4 36.e4 h5 37.h3 Nf6 38.e5 Ne8 39.Nc2 Be6 40.Ne3 Nc7 41.g4 hxg4 42.hxg4 Nb5 43.Rcd3 Nc7 44.Ra1 g5 45.f5 Bc8 46.Nd5 1-0

(3) Unruh,Charles D. (2044) - Oppedal,Jim (1828) [B24] US Senior 2009 (3), 06.09.2009 1.e4 c5 2.Nc3 d6 3.g3 Nc6 4.Bg2 Nf6 5.d3 e6 6.f4 Be7 7.Nf3 0-0 8.0-0 Rb8 9.a4 a6 10.h3 Bd7 11.g4 b5 12.axb5 axb5 13.Bd2 Qb6 14.Kh1 c4 15.g5 Nh5 16.Ne2 cxd3 17.cxd3 g6 18.d4 d5 19.Ne5 Nxe5 20.fxe5 dxe4 21.Bxe4 Bc6 22.Qc2 Bxe4+ 23.Qxe4 Qb7 24.Qg2 Rfc8 25.Rfc1 Rc4 26.b3 Rc7 27.Rxc7 Qxc7 28.Rc1 Qd7 29.Qe4 Qb7 30.Qxb7 Rxb7 31.Rc8+ Kg7 32.Kg2 h6 33.gxh6+ Kh7 34.Kf3 g5 35.Kg4 1-0

(4) Unruh,Charles D. (2044) - Ellis,James (2200) [B25] US Senior 2009 (4), 06.09.2009 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nf3 e6 7.Bg5 Qa5 8.Bd2 Qd8 9.0-0 Nge7 10.Rb1 b6 11.Re1 Bb7 12.a3 Qd7 13.Qc1 0-0 14.Bh6 Nd4 15.Bxg7 Kxg7 16.Nxd4 cxd4 17.Ne2 e5 18.c3 Rac8 19.Qd2 dxc3 20.bxc3 d5 21.Qe3 f6 22.f4 dxe4 23.dxe4 Rcd8 24.c4 Qd2 25.Nc3 Nf5 26.Qxd2 Rxd2 27.Rbd1 Rfd8 28.Nd5 Rxd1 29.Rxd1 Nd4 30.Kf2 Rc8 31.Ne3 Ba6 32.Bf1 h5 33.h4 Rc5 34.Ra1 Bc8 35.Bd3 Bg4 36.Ra2 Be6 37.Nd5 b5 38.cxb5 Bxd5 39.exd5 Rxd5 40.fxe5 Rxe5 41.a4 g5 42.hxg5 fxg5 43.Rb2 Re6 44.a5 h4 45.gxh4 gxh4 46.Rb4 Rf6+ 47.Ke3 Nf3 48.Rf4 Ne5 49.Rxh4 Nxd3 50.Kxd3 Rf5 51.Kc4 Re5 52.Rd4 a6 53.Rd5 axb5+ 54.Kc5 Re1 55.Kxb5 Kf6 56.a6 Ke6 57.Rd4 Rb1+ 58.Rb4 Ra1 59.Kb6 Kd7 60.Kb7 Rc1 61.Rd4+ Ke8 62.Rd6 Ke7 63.Rd5 Ke6 64.Rb5 Kd7 65.a7 Rc7+ 66.Ka6 Rc6+ 67.Rb6 1-0

(5) Shipman,Walter (2208) - Unruh,Charles D. (2044) [B07] US Senior 2009 (5), 07.09.2009 1.d4 Nf6 2.Nc3 d6 3.e4 g6 4.g3 Bg7 5.Bg2 0-0 6.Nge2 Na6 7.0-0 c5 8.d5 Nc7 9.a4 e6 10.dxe6 fxe6 11.e5 dxe5 12.Qxd8 Rxd8 13.Be3 Bf8 14.Bg5 Be7 15.Rfd1 Bd7 16.Ne4 Nce8 17.N2c3 Bc6 18.Bxf6 Nxf6 19.Nxf6+ Bxf6 20.Bxc6 bxc6 21.Ne4 Be7 22.Rxd8+ Rxd8 23.Kf1 Rd4 24.f3 Rb4 25.Ra2 Rd4 26.Ke2 Kf7 27.c3 Rd5 28.Nd2 Ke8 29.Ra1 Kf7 30.a5 a6 31.Nc4 Kf6 32.Ra3 e4 33.fxe4 Rh5 34.h4 g5 35.hxg5+ Kxg5 36.Kf3 Rh1 37.Rb3 Rf1+ 38.Ke2 Ra1 39.Rb7 Bf6 40.Rxh7 Ra4 41.Kd3 Kg4 42.Rh6 1-0

(6) Unruh,Charles D. (2044) - Haring,Ruth (1895) [B02] US Senior 2009 (6), 07.09.2009 1.e4 Nf6 2.Nc3 d5 3.e5 Ng8 4.d4 Bf5 5.Be3 e6 6.g4 Bg6 7.h4 h5 8.g5 Ne7 9.Nge2 Nf5 10.Nf4 Bb4 11.Bd3 c5 12.Bxf5 Bxf5 13.Nxh5 Kf8 14.Ng3 Nc6 15.Nxf5 exf5 16.a3 Ba5 17.f4 Bxc3+ 18.bxc3 c4 19.a4 g6 20.h5 gxh5 21.Kd2 h4 22.Qe1 h3 23.Qg3 Ne7 24.Rxh3 Rg8 25.Rh7 a5 26.Rb1 Qc7 27.Ke2 Ra6 28.Bc1 Rag6 29.Ba3 Ke8 30.Qh3 Qd7 31.Rb5 b6 32.Qh1 Re6 33.Bxe7 1-0

(7) Kline,Les (1693) - Rine,Albert (1341) [D05] 2009 U.S. Senior Open Tulsa (1), 05.09.2009 [Fritz 10 (15s)] D05: Colle System with ...e6 1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c6 5.Nbd2 Nbd7 6.0-0 Bd6 7.b3 [7.Qe2 Qc7 8.e4 dxe4 9.Nxe4 Nxe4 10.Qxe4 Nf6 11.Qh4 Bd7 12.Re1 Qa5 13.Bg5 Be7 14.Ne5 h6 15.Qh3 Rf8 16.Be3 0-0-0 17.c4 Be8 18.a3 Bd6 19.b4 Qc7 20.f4 g5 21.Qxh6 gxf4 Hoi,C (2405)-Schiller,E/Reykjavik 1986/EXT 2000/1-0; 7.c3 0-0 8.e4 dxe4 9.Nxe4 Nxe4 10.Bxe4 h6 11.Bc2 c5 12.Qd3 Nf6 13.Be3 b6 14.Ne5 Bxe5 15.dxe5 Qxd3 16.Bxd3 Nd5 17.Bd2 Rd8 18.Be4 Ba6 19.Rfc1 Rac8 20.c4 Nb4 21.Bxb4 cxb4 Prill,D (1931)-Boettger,M/Ottenau 2005/CBM 105 ext/1/2-1/2 (47)] 7...Qc7N [7...0-0 8.Bb2 Re8 (8...b6 9.Ne5 Bb7 10.f4 c5 11.Qf3 Rc8 12.g4 cxd4 13.exd4 Qc7 14.c3 a6 15.g5 Ne8 16.Qh5 f5 17.Ndf3 Bxe5 18.fxe5 g6 19.Qh3 b5 20.Nh4 Nb6 21.Ng2 Qe7 22.Qe3 Kf7 23.a4 Berger,T-Koenig,F/Leipzig 1995/Juniors/1-0 (40)) 9.Ne5 g6 10.f4 Bf8 11.Qf3 Bg7 12.g4 Rf8 13.Rf2 Nxe5 14.dxe5 Nd7 15.g5 h5 16.gxh6 Bxh6 17.Rg2 Nc5 18.Qh3 Kg7 19.f5 Rh8 20.f6+ Kg8 21.Bxg6 1-0 Sikorsky,H (2134)-Sikorsky,R/Crailsheim 2000/EXT 2001; 7...e5 8.e4 0-0 9.Bb2 exd4 10.Nxd4 Ne5 11.Nf5 Bxf5 12.exf5 Nfg4 13.g3 Nxd3 14.cxd3 Qg5 15.Nf3 Qxf5 16.Nh4 Qd7 17.h3 Ne5 18.Kg2 Ng6 19.Nf3 Rfe8 20.Qd2 Re7 21.Rae1 Rae8 22.Rxe7 Kainz,J (2056)-Poetsch,K (2194)/Bad Wiessee 2001/EXT 2003/0-1 (40); 7...e5 8.e4 0-0 9.Re1= ] 8.Bb2 Ng4 9.h3 h5 [>=9...Ngf6+/= ] 10.hxg4?? not a good decision, because now the opponent is right back in the game [>=10.e4 dxe4 11.Nxe4 Bh2+ 12.Kh1+/- ] 10...hxg4-/+ 11.Ne5 Nxe5 12.dxe5 Bxe5 13.Bxe5 Qxe5 14.g3?? leads to further unpleasantness [>=14.Re1 Qh5 15.Kf1=/+ ] 14...Qh5 15.Bh7 0-1

(8) Rine,Albert (1341) - Berry,Jim (1895) [D40] 2009 U.S. Senior Open Tulsa (3), 06.09.2009 [Fritz 10 (60s)] D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nf3 e6 6.Bd3 dxc4 7.Bxc4 Be7 8.0-0 0-0 9.Nc3 b6 White has a very active position 10.Ne5N Black has a cramped position [10.Qe2 Bb7 11.Rd1 Nd5 12.Ne5 Nxc3 13.bxc3 Nc6 14.Rd3 Na5 15.Rh3 Nxc4 16.Nxc4 Qd5 17.Ne3 Qe4 18.f3 Qc6 19.Bd2 f5 20.f4 Rf6 21.Rg3 Qe4 22.Qf3 Qxf3 23.gxf3 Rc8 24.Nd1 Rh6 Szily,J-Karaklajic,N/Bad Liebenstein 1963/EXT 2000/0-1 (37); 10.Bg5 Bb7 11.Qe2 Nbd7 12.Rad1 1/2-1/2 Oral,T (2510)-Zurek,M (2455)/Olomouc 1998/CBM 067; 10.d5 exd5 11.Nxd5 Bb7 12.Nxe7+ Qxe7 13.Bg5 Nbd7 14.Bxf6 Nxf6 15.Re1 Qc7 16.Rc1 Rad8 17.Qb3 Bxf3 18.Qxf3 Rfe8 19.Bb3 Rxe1+ 20.Rxe1 Kf8 21.g3 h6 22.Re2 Qd7 23.Qc3 a5 24.Rc2 Qh3 Heinz,T (2154)-Vojtech,J (2122)/Bayern 2003/EXT 2006/1/2-1/2; 10.Qc2 Nc6 11.Re1 Nd5 12.Ne4 Rb8 13.a4 Na5 14.Be2 Nb7 1-0 Geisler,R-Klank,R/Detmold 1972/EXT 2001] 10...Bb7 11.Be3 White has a very active position [11.Qb3 Nc6 12.Bxe6 Nxe5 13.dxe5 fxe6 14.Qxe6+ Rf7 15.exf6 Bxf6= ] 11...Nc6= Exerts pressure on the isolated pawn 12.Ne2 [12.Be2 Nb4= ] 12...Na5 [12...Qc7 13.Nf3-/+ ] 13.Bd3=/+ White has an active position 13...Rc8 14.Ng3 White has a very active position [14.Nc3=/+ ] 14...Nd5 [14...Qd5!? 15.f3 Nc6 16.Nxc6 Qxc6-/+ ] 15.Qh5 White has a mate threat [15.Qg4 Nf6 16.Qh3 Nc6= ] 15...Nf6 Black threatens to win material: Nf6xh5 [15...g6 16.Qh3= ] 16.Qh4 White has a very active position [16.Qh3 g6+/= ] 16...Nc6= 17.Ng4 [17.Nxc6!? is worthy of consideration 17...Bxc6 18.Rfe1=/+ ] 17...g6-/+ 18.Ne4? [>=18.Nh6+ Kg7 19.Ng4 Nxg4 20.Qxg4-/+ ] 18...Nxg4-+ 19.Qxg4 f5 20.Qg3 [20.Qe2 fxe4 21.Bxe4 Bd6-+ ] 20...fxe4 21.Bxe4 Bd6 22.Qg4 Qf6 23.Bg5 [23.Bh6 Rfe8-+ ] 23...Qf7 24.Rad1 [24.Bh6 Rfd8 25.Bg5 Be7 26.Bxe7 Qxe7-+ ] 24...Nd8 [>=24...Ba6 seems even better 25.Bd3 Bxd3 26.Rxd3-+ ] 25.d5?? White crumbles in face of a dire situation [25.f3 Rc7-+ ] 25...e5 [>=25...exd5 ends the debate 26.b3 Bxh2+ (‹26...dxe4 27.Rxd6 Qf5 28.Qxf5 gxf5 29.Bh6-+ ) 27.Kxh2 dxe4-+ ] 26.Bh6 Rc4 [>=26...Re8!?-+ ] 27.Bxf8 Bxf8 28.Qe2 Rd4 The pressure on the isolated pawn grows 29.Rxd4 exd4 Black has a new passed pawn: d4. 30.Qc4 White threatens to win material: Qc4xd4 30...Bg7 [30...Nc6 31.Rc1 Nb4 32.a3 Nxd5 33.Qxd4=/+ ] 31.Rc1 Be5 32.g3 Secures f4 32...Kg7 33.Qc7?? [>=33.Bg2=/+ was much better] 33...Bxc7-+ [33...Bxc7 34.a4 Be5-+ ] 0-1

(9) Oppedal,Jim (1828) - Rine,Albert (1341) [D05] 2009 U.S. Senior Open (4), 06.09.2009 [Fritz 10 (60s)] D05: Colle System with ...e6 1.d4 d5 2.Nf3 e6 3.e3 Nf6 4.Bd3 Nbd7 5.Nbd2 c6 6.0-0 Qc7 7.Re1 [7.b3 Be7 8.c4 dxc4 9.Nxc4 b5 10.Nce5 Bb7 11.Bb2 0-0 12.Rc1 a6 13.Bb1 Rac8 14.Nxd7 Qxd7 15.Ne5 Qd5 16.Re1 c5 17.e4 Qd6 18.Nf3 Qb6 19.d5 exd5 20.exd5 Nxd5 21.Ne5 Rcd8 Longa Yauca,J (2332)-Montiel Minguelez,M (2081)/Madrid 2002/CBM 089 ext/1-0 (34); 7.Qe2 b5 8.e4 Nxe4 9.Nxe4 dxe4 10.Qxe4 Nf6 11.Qe2 a6 12.Ne5 c5 13.dxc5 Bxc5 14.Bg5 Bd6 15.Bxf6 gxf6 16.Ng4 Ke7 17.Qf3 f5 18.Qxa8 fxg4 19.Rae1 Bxh2+ 20.Kh1 Be5 21.Qe4 Bxb2 Kathage,H-Badenschier,R/Kiel 2003/EXT 2004/1-0 (37)] 7...Bd6 8.e4 0-0??N solves nothing [8...dxe4 9.Nxe4 Nxe4 10.Bxe4 Nf6 11.Bd3 0-0 12.Bg5 Nd7 13.Qe2 Re8 14.Qe4 f5 15.Qh4 h6 16.Bxf5 Nf8 17.Bd2 Be7 18.Qh5 Rd8 19.Bd3 Bf6 20.Be3 Rd5 21.Qg4 e5 22.Qg3 Nd7 23.Bc4 Saint,A-Rovere,C/Hervey Bay 1999/EXT 2000/1-0 (40); >=8...dxe4 9.Nxe4 Nxe4 10.Rxe4 h6+/= ] 9.e5+- Be7 10.exf6 Nxf6 11.c3 Bd6 12.Ne5 c5 13.Ndf3 c4 14.Bc2 b5 15.Bg5 [>=15.Ng5!? might be the shorter path 15...h6+- ] 15...Ne4 16.Bh4 f6 17.Ng4 h5 [17...a5 18.Qe2+- ] 18.Ne3 g5 19.Bg3 Nxg3 20.hxg3 g4 [20...Qg7 21.a4 b4 22.b3+- ] 21.Nd2 [21.Nh4 and White can already relax 21...f5+- ] 21...f5 22.Nef1 [22.Qe2 Rb8+- ] 22...Qh7 23.Qe2 h4 24.Qe3 [24.gxh4 Qxh4 25.g3 Qh5+/- ] 24...h3? [>=24...Qh5!?+/= deserves consideration] 25.Qg5+ [25.gxh3 Qxh3 26.f4 Qh8+- ] 25...Kf7 26.Qxg4?? letting the wind out of his own sails [>=26.gxh3 White would have gained the upper hand 26...Rg8 27.Qh4 Qxh4 28.gxh4 gxh3+ 29.Kh1+- ] 26...hxg2= Black has a mate threat [26...fxg4?? materialistic play, which will be punished 27.Bxh7 b4 28.gxh3 gxh3 29.f4+- ] 27.Kxg2? [>=27.Nh2 and White can hope to survive 27...Qxh2+ 28.Kxh2 fxg4 29.f4= ] 27...Rh8-+ [27...fxg4?? going for material but overlooking... 28.Bxh7 Re8 29.Rad1+- ] 28.Qh4 Qxh4?? gives away a clear win [>=28...Qg7 a pity that Black didn't try this 29.Qxh8 Qxh8-+ ] 29.gxh4+- Rxh4 30.Ne3 Bd7 31.Nf3 [31.Rh1!? Rhh8+- ] 31...Rg8+ 32.Kf1 Rh1+ [32...Rh3 33.Bd1+- ] 33.Ke2 Rxe1+ 34.Rxe1 [Less advisable is 34.Nxe1 f4 35.N3g2 Kf6+- ] 34...Kf6 35.Rg1 [35.Rh1!? makes it even easier for White 35...Be8+- ] 35...Rxg1 36.Nxg1 b4? [36...a5 37.Ng2+- ] 37.Nd1 [37.cxb4!? seems even better 37...Bb5 38.a4 Be8+- ] 37...Bb5 [37...a5 38.Ne3+- ] 38.cxb4 Bxb4 39.Nc3 Be8 40.Nf3 Bxc3 [40...Bd6+- ] 41.bxc3 Bh5 42.Ke3 Bxf3 [42...Be8+- is the last straw] 43.Kxf3 Kg5 [43...e5+- what else?] 44.Ba4 Kf6 45.Kf4 e5+ [45...Ke7+- desperation] 46.dxe5+ Ke6 47.Bb5 a5 48.a4 Ke7 If Black now would get Bxc4 in, he might survive 49.Kxf5 d4 50.cxd4 c3 51.Bd3 Kf7 [51...Ke8 doesn't get the bull off the ice 52.Kf6 c2 53.Bxc2 Kd7 54.e6+ Kc7 55.Kf7 Kc8 56.e7 Kc7 57.Be4 Kd6 58.e8Q Kc7 59.Qc6+ Kd8 60.Qb6+ Kc8 61.Bf5# ] 52.e6+ Ke7 [52...Ke8 a fruitless try to alter the course of the game 53.Kf6 c2 54.Bxc2 Kd8 55.e7+ Kd7 56.Be4 Kc8 57.e8Q+ Kc7 58.Qf7+ Kd8 59.Qb7 Ke8 60.Qe7# ] 53.Ke5 [53.Bc2 Kd6 54.Kf6 Kc6 55.e7 Kc7 56.e8Q Kb6 57.Qc8 Ka7 58.Qc7+ Ka6 59.Bd3# ] 53...Ke8 [53...c2 is not much help 54.Bxc2 Kd8 55.Kd6 Ke8 56.e7 Kf7 57.f4 Kg8 58.e8Q+ Kg7 59.d5 Kh6 60.Qg6# ] 54.Kf6 Kf8 [54...Kd8 does not help much 55.e7+ Kd7 56.Bf5+ Kc7 57.e8Q c2 58.Qd7+ Kb8 59.Be4 c1Q 60.Qb7# ] 55.e7+ Ke8 56.Bb5# 1-0

(10) Rine,Albert (1341) - King,Marshall D. (1644) [C55] 2009 U.S. Senior Open (5), 07.09.2009 [Fritz 10 (60s)] C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack 1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.c3 Nf6 5.0-0 d6 6.Re1 0-0 7.d4 Bg4 8.d5 Nb8 9.Qd3N [9.h3 Bc8 (9...Bh5 10.Nbd2 h6 11.a4 a6 12.Nf1 Nbd7 13.Ng3 Bg6 14.Nh4 Bxe4 15.Nxe4 Nxe4 16.Nf5 Ng5 17.h4 Nh7 18.Nxh6+ gxh6 19.Bxh6 Bxh4 20.Bxf8 Ndxf8 21.g3 Bf6 22.Kg2 Bg7 23.Rh1 f5 24.Rh5 Kanai,A-Guijarro,F/Haifa 1976/EXT 2000/0-1 (40)) 10.Bf1 h6 11.c4 Nbd7 12.Nc3 a5 13.Be3 b6 14.b3 Nc5 15.Nd2 Nh7 16.g4 Bd7 17.a3 Bg5 18.b4 Nb7 19.Qf3 g6 20.Bd3 Kg7 21.Kg2 Bh4 22.Kh2 Ng5 23.Qg2 h5 Niephaus,W-Witkowski,S/Heidelberg 1949/MCD/0-1 (32); 9.Bd3 c6 10.c4 Na6 11.Nc3 Nc5 12.h3 Nxd3 13.Qxd3 Bc8 14.Be3 Ne8 15.dxc6 bxc6 16.Rad1 Be6 17.b4 Qc7 18.b5 cxb5 19.cxb5 Qa5 20.Rc1 Nc7 21.Nd2 Rfd8 22.Nd5 Nxd5 23.exd5 Bd7 Savereide,D (2230)-Starr,N (2130)/Thessaloniki 1984/EXT 97-B/1/2-1/2 (34); 9.Bg5 Nbd7 10.Bxf6 Nxf6 11.Nbd2 c6 12.dxc6 bxc6 13.Bb3 Qc7 14.Qc2 a5 15.Rac1 Nd7 16.Bc4 Nc5 17.b4 Ne6 18.h3 Bh5 19.Qb3 Nf4 20.b5 a4 21.Qc2 d5 22.Bf1 cxb5 23.exd5 Ba3 Asrian,A (2088)-Patsyk,A (2224)/Kimry 2005/EXT 2006/0-1 (41); 9.Nbd2 Nbd7 10.Nf1 Nb6 11.Bb3 Qc8 12.Ng3 Bxf3 13.Qxf3 Qg4 14.Qxg4 Nxg4 15.Nf5 Bd8 16.h3 Nf6 17.Bc2 Nc8 18.Be3 Ne7 19.g4 Nxf5 20.gxf5 Nh5 21.Kh2 Bf6 22.Rg1 Nf4 23.Bxf4 exf4 Baca,A-Kostjoerin,A/Havana 1966/MCD/1/2-1/2; 9.Nbd2 c6= ] 9...c6 Covers b5 [9...Nbd7 10.a4= ] 10.Nh4 [10.h3 Bc8= ] 10...cxd5 [10...Nxd5!? is interesting 11.exd5 Bxh4-/+ ] 11.exd5= Re8 12.Qg3 [12.Nf5 Nbd7+/= ] 12...Bf8?? not a good decision, because now the opponent is right back in the game [>=12...Qc8!? 13.Qd3 e4-/+ ] 13.h3 White threatens to win material: h3xg4 [13.Bg5 Bd7+/- ] 13...Bh5 [13...Bd7 14.Bg5= ] 14.Bg5+/= Bg6 [14...Nbd7 15.Nd2+/= ] 15.Re3 [>=15.Bb5!? Re7 16.Nd2+/- ] 15...a6 Consolidates b5 16.Bd3 [16.Nxg6 hxg6 17.Nd2 Be7+/= ] 16...Bxd3 17.Rxd3 Nbd7 18.Nf5 Nc5?? [>=18...g6 the only rescuing move 19.Nd2 b5= ] 19.Nh6++- [19.Nh6+ Kh8 20.Nxf7+ Kg8 21.Nxd8+- ] 1-0

(11) Rine,Albert (1341) - Mayers,Dan E. (1945) [B00] 2009 U.S. Senior Open (1), 05.09.2009 [Fritz 10 (15s)] B00: Queen's Fianchetto Defence, Nimzowitsch Defence 1.e4 b6 2.Nf3 Bb7 3.Nc3 g6 4.Bc4 Bg7 5.d4 d6 [5...e6 6.0-0 d6 7.Bg5 Ne7 8.Qd2 h6 9.Be3 a6 10.a4 d5 11.exd5 Nxd5 12.Nxd5 Bxd5 13.Bxd5 Qxd5 14.c4 Qh5 15.Bf4 Nd7 16.Bxc7 0-0 17.Rac1 Rfc8 18.Bg3 Rc6 19.Rfe1 Rac8 20.b3 Rausz,A (2210)-Pinterne Kovacs,M/Hungary 1995/EXT 99/1-0 (36)] 6.0-0 Nd7 7.b4??N weakening the position [7.Bxf7+ Kxf7 8.Ng5+ Ke8 9.Ne6 Qc8 10.Nxg7+ Kf7 11.Nh5 gxh5 12.Qxh5+ Kg7 13.Qg5+ Kf7 14.e5 Nf8 15.Re1 Ng6 16.e6+ Ke8 17.d5 Nf6 18.Qf5 Nh4 19.Qd3 Rg8 20.g3 c6 21.Ne4 Nxd5 Nikolaeva,M (2179)-Dupak,O/Kiev 2000/CBM 079 ext/0-1; 7.Qe2 Ngf6 8.Bb3 0-0 9.Rd1 Qc8 10.Bf4 c5 11.d5 a6 12.a4 Nh5 13.Bg3 Rb8 14.Bc4 Nxg3 15.hxg3 Ne5 16.Nxe5 Bxe5 17.f4 Bd4+ 18.Kh2 f5 19.e5 dxe5 20.fxe5 f4 21.g4 Kh8 Craciun,P-Foisor,S/Eforie Nord 2001/EXT 2004/0-1; >=7.Ng5 White had this great chance 7...d5 8.Nxd5+- ] 7...e6 Covers d5 8.Bf4 Ne7 9.Re1 White has a very active position 9...0-0 10.Qd3 a6 Prevents intrusion on b5 11.a4 h6 Black has a cramped position 12.Rad1 [12.b5!?+/= ] 12...g5= 13.Be3 Nc6 Black threatens to win material: Nc6xb4 14.Rb1 White prepares b5. Black has a cramped position 14...a5 Black threatens to win material: a5xb4 15.b5 White threatens to win material: b5xc6 15...Nb4 Black threatens to win material: Nb4xd3 16.Qd2 [>=16.Qd1!?= would keep White alive] 16...g4-/+ 17.Bxh6 [17.Ng5!? hxg5 18.Bxg5-/+ ] 17...gxf3-+ 18.gxf3 [18.Bg5 Bf6 19.Be3 fxg2 20.Kxg2 Kh8-+ ] 18...Qf6 [18...Nxc2!? keeps an even firmer grip 19.Qxc2 Bxh6 20.Kh1-+ ] 19.Bxg7 Kxg7 20.Be2? [20.Bf1-+ ] 20...Rh8 21.e5 [21.Bf1 what else? 21...e5 22.d5-+ ] 21...Qg6+ 22.Kh1 [22.Qg5 is no salvation 22...Qxg5+ 23.Kf1 Rxh2 24.Bd3 Bxf3 25.Rxb4 Rh1# ] 22...Rxh2+!! Mate attack. . . . . [22...Rxh2+ 23.Kxh2 Rh8+ 24.Qh6+ Rxh6# ] 0-1