(7) Goldfarb,D - Lee,A [C01]
Berkeley Marathon, 2004
[Riese,Kayven]
1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nf3 Bd6 5.Bd3 Ne7 6.Bg5 f6 7.Bh4 Bg4 8.0-0 Nbc6 9.c3 Qd7 10.Nbd2 0-0-0 Diagram
'1/2-1/2 Egido,F-Dominguez,J/Ibercaja 1997/FatBase 98 (10)' 11.Qc2 [ 11.b4 g5 Diagram ( 11...Nf5 12.Bg3 Bxg3 13.hxg3 h5 14.Qc2 h4 15.Nxh4 Nxh4 16.gxh4 Rxh4 17.f3 Be6 18.Rae1 Ne7 19.Rf2 Rdh8 20.Rfe2 Rh1+ 21.Kf2 Rxe1 22.Rxe1 Qd6 23.Nf1 Bd7 24.Ng3 Kd8 25.Qe2 Re8 26.Qc2 g5 27.Nf5 Bxf5 28.Bxf5 Qf4 29.Bh3 Qh4+ 30.Kf1 Qf4 31.Qe2 f5 32.Qe5 Qxe5 33.Rxe5 Rf8 34.g4 Ke8 35.gxf5 Kf7 36.Bg4 Rh8 37.Kg2 Rh6 38.f4 gxf4 39.Kf3 Rd6 40.Kxf4 Kf6 41.Re3 Ra6 42.a4 Nxf5 43.Bxf5 Rxa4 44.Re6+ Kf7 45.Ke5 Ra3 46.Bg6+ Kg7 47.Re7+ Kxg6 48.Rxc7 b6 49.Kxd5 Kf6 50.c4 Rb3 51.Rxa7 Rxb4 52.c5 bxc5 53.dxc5 Rb1 54.Kd6 Rd1+ 55.Kc7 Rc1 56.c6 Ke6 57.Ra2 Rc3 58.Rd2 1-0 Knothe-Zirngibl/Berl!n ch-DDR 1951/FatBase 98 (58)) 12.Bg3 Bxg3 Diagram ( 12...Ng6 13.Qa4 Kb8 14.Bb5 a6 15.Bxc6 Qxc6 16.Qxc6 bxc6 17.Bxd6 cxd6 18.Rfe1 Rhe8 19.Rxe8 Rxe8 20.Re1 Rxe1+ 21.Nxe1 Nf4 22.f3 Bf5 23.Kf2 Kc7 24.g3 Nd3+ 25.Nxd3 Bxd3 26.Ke3 Bg6 27.a3 Kb6 28.Nb3 Bc2 29.Na5 Bg6 30.Kd2 Bf7 31.Ke3 Be6 32.Kd3 Bf7 33.Ke3 h6 34.Kd3 Bh5 35.Ke3 Bf7 36.Kd3 Bg6+ 37.Ke3 Kc7 38.Kd2 Bf5 39.Ke2 Bc2 40.Kd2 Ba4 41.Ke3 Bd1 1/2-1/2 Randviir Yury-Bondarevsky/Parnu 1947/FatBase 98 (41); 12...Nf5 Diagram 13.Qc2 Bxg3 14.hxg3 Kb8 15.Nh2 Ng7 16.Nb3 h5 17.Nc5 Qd6 18.Qa4 Bc8 19.b5 Ne7 20.Rab1 h4 21.g4 f5 22.Rfe1 h3 23.g3 fxg4 24.Na6+ Ka8 25.Nxc7+ Qxc7 26.b6 Qb8 27.Rxe7 Nh5 28.Rb3 Nxg3 29.Ra3 Ne4 30.Qb4 g3 31.Bxe4 gxh2+ 32.Kh1 dxe4 33.Rxa7+ Qxa7 34.bxa7 Rdf8 35.Qd6 Bg4 36.Qe5 Bf3+ 37.Kxh2 g4 38.d5 g3+ 39.fxg3 Be2 40.Qd4 Bd3 41.c4 Rh6 42.d6 Rhf6 43.Re8+ Rxe8 44.Qxf6 1-0 Padovani,M-Subramanian,S/Berkeley 1981/FatBase 98 (44)) 13.fxg3 Diagram 13...h5 14.b5 Nb8 15.Qa4 a6 16.Rae1 h4 17.Qb4 Rde8 18.bxa6 bxa6 19.Rb1 Nec6 20.Qb7+ Kd8 21.gxh4 gxh4 22.Bxa6 Nxa6 23.Qxa6 Ke7 24.Rbe1+ Be6 25.Nb3 Nd8 26.Nc5 Qd6 27.Qe2 Kf8 28.Ne5 Kg7 29.Qf3 Bc8 30.Ng4 Rxe1 31.Rxe1 Nf7 32.Ne6+ Diagram 1-0 Negra,M-Contini,D/ITA corr 1965/Corr Nr. 1 (32) '1-0 Negra-Contini/cr ITA 1965/FatBase 98 (32)'; 11.Bg3 Bxg3 Diagram ( 11...g5 12.Qc2 h5 13.Bxd6 Qxd6 Diagram 14.Rfe1 ( 14.h3 Bd7 15.Nh2 h4 16.Be2 f5 17.f3 Rdg8 18.Qd1 Ng6 19.a4 Nf4 20.b4 Nxe2+ 21.Qxe2 g4 22.fxg4 fxg4 23.Nxg4 Bxg4 24.hxg4 h3 Diagram 25.Rf2 Qg3 26.Rf3 Qxg2+ 27.Qxg2 hxg2 28.Kxg2 Rxg4+ 29.Rg3 Rxg3+ 30.Kxg3 Re8 31.Kf2 Kd7 32.Re1 Rxe1 33.Kxe1 Ne7 34.Kd1 Nf5 35.Kc2 Kc6 36.Nb3 Ne3+ 37.Kb2 b5 38.a5 Nc4+ 1/2-1/2 Kubikova Alena-Paduraru Smaranda/ch World cadets (under 1997/FatBase 98 (38)) 14...h4 Diagram 15.b4 Rdg8 16.a4 Bd7 17.Nb3 g4 18.Nfd2 g3 19.Nf1 gxh2+ 20.Kh1 Rxg2 21.Kxg2 Rg8+ 22.Ng3 hxg3 23.f3 Qf4 24.Nc5 Nf5 25.Bxf5 Bxf5 26.Ne6 Bh3+ 27.Kxh3 Qxf3 28.Qh7 h1Q+ 0-1 Virnik,E-Kiss,J/Eu Y ch g16 1996/FatBase 98 (28)) 12.fxg3 Diagram 12...h5 13.Nb3 Rde8 14.Nc5 Qd6 15.Qb3 Nd8 16.Qa4 Kb8 17.Qb3 Bxf3 18.Rxf3 Nec6 19.Ba6 Na5 20.Qb4 Ndc6 21.Qb5 b6 22.b4 Nc4 23.Bb7 Nd8 24.Bxd5 c6 Diagram 25.Na6+ Kb7 26.Qxc4 cxd5 27.Qd3 Nf7 28.b5 Ng5 29.Re3 Ne4 30.Nb4 f5 31.Nc6 h4 32.gxh4 Rxh4 33.Rh3 Reh8 34.Rxh4 Rxh4 35.g3 Rh3 36.Kg2 Qh6 37.Rh1 Nxg3 Diagram 38.Qf3 Nxh1 39.Qxf5 Rxh2+ 40.Kg1 Qd6 41.Qf7+ Qc7 42.Qxc7+ Kxc7 43.Kxh2 Nf2 44.Nb4 Kd6 45.a4 Nd1 46.Nc6 a5 0-1 Schwehm,C-Hammes,M/RLPF-chJ U20 Traben 1993/FatBase 98 (46); 11.Qa4 Diagram 11...h5 ( 11...Kb8 12.Bg3 g5 13.b4 Nxd4 14.Qxd7 Nxf3+ 15.gxf3 Bxd7 16.Bxd6 cxd6 17.Nb3 Nc6 18.Rfd1 Ne5 19.Be2 h5 20.b5 g4 21.f4 Ng6 22.Rd4 Bf5 23.f3 Rde8 24.Kf2 Nh4 25.fxg4 hxg4 26.Rg1 Nf3 27.Bxf3 gxf3 28.Rxd5 Be4 29.Rd2 Rxh2+ 30.Kg3 Rh5 31.Rxd6 Rg8+ 32.Kf2 Rh2+ 33.Kf1 Rxg1+ 34.Kxg1 f2+ 35.Kf1 Bf5 36.Ke2 Bg4+ 0-1 Kazakov,P-Goriatchkin Jouri/ch RUS (1/2 final) 1996/FatBase 98 (36)) 12.b4 Diagram 12...g5 13.b5 Bxf3 14.Nxf3 gxh4 15.bxc6 Qg4 16.Rfb1 bxc6 17.h3 Qf4 18.Re1 Rhg8 19.Rxe7 Rxg2+ 20.Kxg2 Rg8+ 21.Kf1 Qxf3 22.Qa6+ Kd8 23.Re3 Qh1+ 24.Ke2 Qxa1 25.Qxa7 1-0 Valverde Lopez,M-Arena,G/Latin Am zt corr 1986/Corr 2000 (25)] 11...Ng6 [ 11...Nf5 12.h3 Nxh4 13.Nxh4 Be6[] a) 13...g5? 14.hxg4 Kb8 (a) 14...gxh4 15.Bf5) ; b) 13...Bh5? 14.Bf5; 14.Nf5] 12.Bg3 [ of course not 12.Bxg6 hxg6 13.Qxg6?? Bf5 Diagram trapping the queen (David Goldfarb)] 12...Nce7 [ Trying to get the two bishops with 12...Nf4 13.Bb5 ( 13.Bxf4 Bxf4 14.h3 Be6 Diagram 15.Rfe1 ( 15.Bxh7? f5) 15...Rde8) 13...a6 14.Bxf4 ( 14.Ba4 Ne2+) 14...Bxf4 Diagram as Fritz and Crafty perfer (i like this speeling) seems rational enough.] 13.Bxd6 Qxd6 14.g3 Rdf8 15.Rae1? David gives the punctuation "??!" and I think I know how he feels... or do I? He could mean that it was a dubious mistake or an outstanding blunder. It's always hard with punctuation in chess because If you end a sentence with a chess move and the sentence you write happens to be a question it will look like you are implying that that last move was a mistake when that is not what you mean (assuming that's not what you mean anyway). I am noting the move as a mistake ("?") for now, as according to the engines, it loses a pawn. It's possible that I will end up revising the move to exclam status in the end, however, fickle as the game of chess can be. 15...Bh3 16.Nb3 [ 16.c4 Re8 17.cxd5 Bxf1 18.Bxf1 Qxd5 ( 18...Nxd5 19.Rxe8+ ( 19.Ne4 Qb6 20.Nc5 Rxe1[] a) 20...Kb8? 21.Nd7+; b) 20...Nge7? 21.Bh3+ Kd8 22.Ne6+; c) 20...Qc6 21.Rxe8+ Rxe8 (c) 21...Qxe8? 22.Qf5+ Kb8 23.Qxd5) 22.Bh3+ Kd8[] (c) 22...Kb8? 23.Bd7) 23.Bd7 Qb6 (c) 23...Nb4 24.Bxc6 Nxc2 25.Nxb7+ Ke7 (c) 25...Kc8 26.Bxe8) 26.Bxe8 Kxe8) 24.Bxe8 Kxe8 25.Qe4+ Nge7 (c) 25...Nde7 26.Qxb7 (c) 26.Nxb7? f5) 26...Qxb7 27.Nxb7) 26.Qxh7; d) 20...Kd8 21.Qf5 d1) 21.Qa4 c6 22.Ne6+ Kc8 23.Nxg7 Rxe1 24.Nxe1 Rg8 25.Nf5; d2) 21.Rxe8+ Rxe8 22.Qf5; d3) 21.Bc4 Rxe1+ 22.Nxe1 Re8 23.Ned3 c6 24.a3 (d3) 24.Qd1 Nb4 25.Qg4 Re7 26.Ne6+ Ke8 27.Ndc5 (d3) 27.Nxg7+; d3) 27.Nxb4) 27...Nd5 (d3) 27...Nc2 28.Nxg7+ Rxg7 29.Qc8+ Qd8[] (d3) 29...Ke7? 30.Qd7+ Kf8 31.Ne6+ Kg8 32.Qxg7#) 30.Qxd8+ Kxd8 31.Ne6+ Ke7 32.Nxg7 Nxd4) 28.Nxg7+ Kf7 (d3) 28...Rxg7 29.Qc8+ Kf7 (d3) 29...Qd8 30.Qxd8+ Kxd8 31.Ne6+; d3) 29...Ke7? 30.Qd7+ Kf8 31.Ne6+ Kg8 32.Qxg7#) 30.Qe6+ Kf8 31.Qc8+ Kf7=) 29.Nf5 Re1+ 30.Kg2 Kg8 d31) 30...Qd8 31.Ne3 (d31) 31.Nxb7 Qb6 32.Bxd5+ (d31) 32.Qf3 Kf8 33.Bxd5) 32...cxd5 33.Qf3 Kf8 (d31) 33...Kg8 34.Qxd5+) 34.Qxd5 Ne7 35.Nxe7 Rxe7 36.Nc5 (d31) 36.Qd8+ Qxd8 37.Nxd8 Rd7 (d31) 37...Re2 38.a4 Rxb2) ) 36...Qxb2 37.a4) ; d32) 30...Qxb2?! 31.Nd6+ Kg7[] d321) 31...Ke7? 32.Qd7+ Kf8 33.Qf7#; d322) 31...Kf8 32.Bxd5 (d322) 32.Qc8+ Kg7 (d322) 32...Ke7?? 33.Qd7+ Kf8 34.Qf7#) 33.Nf5+ Kf7 34.Nxb7 Nh4+ (d322) 34...Qc1?? 35.Nbd6# Diagram ) 35.Nxh4) 32...cxd5 33.Qc8+ Kg7 34.Nf5+ Kf7 35.Qd7+ Re7 (d322) 35...Ne7 36.Nd3 Qd2 37.Nxe1 Qxe1 38.Nd6+ Kg7 (d322) 38...Kf8? 39.Qe8+ Kg7 40.Qf7+ Kh6 (d322) 40...Kh8? 41.Qf8+ Ng8 42.Nf7#) 41.Qxf6+ Kh5 (d322) 41...Ng6 42.Nf7+ Kh5 43.Qg5#) 42.h3 Qd1 43.Nf7 Qe2 44.Qg5#) 39.Qg4+ Kf8[] Diagram d3221) 39...Ng6 40.h4 h5 (d3221) 40...b6? 41.h5) 41.Qxh5; d3222) 39...Kh6?? 40.Nf7#; d3223) 39...Kh8 40.Nf7#; 40.Qh4 Kg7 41.Ne8+ Kf7 (d322) 41...Kf8 42.Nxf6) 42.Qh5+ Ke6 (d322) 42...Kf8 43.Nxf6) 43.Qxh7) ; d323) 31...Kg8 32.Qc8+ Kg7 (d323) 32...Nf8 33.Nd7) 33.Nf5+ Kf7 34.Nxb7 Nh4+ (d323) 34...Qc1? 35.Nbd6#) 35.Nxh4; ; ) ; d4) 21.Bg2 Rxe1+ 22.Nxe1 Re8 23.Ned3 (d4) 23.Nf3 c6) 23...c6 (d4) 23...Nge7 24.Qc4 c6) 24.Qc4 Nge7 25.Ne6+ Kc8 (d4) 25...Kd7 26.Ndc5+) 26.Bh3 Kb8 27.Nxg7; 21...Qc6[] (d) 21...Re7 22.Qxd5+) 22.Ne6+ Rxe6 (d) 22...Kc8? 23.Nxg7+ (d) 23.Nf8+ Kb8 24.Rxe8+ Qxe8 25.Nd7+ Ka8 26.Qxd5 c6 (d) 26...Qd8? 27.Nxf6) 27.Qd6 Qe4) 23...Qd7 24.Qxd7+ Kxd7 25.Rxe8 Rxe8 26.Nxe8 Kxe8) 23.Rxe6 Qd7 24.Bh3 Nge7 25.Qc2 c6; e) 20...Rd8? 21.Qf5+ Kb8 22.Nd7+; f) 20...Qd6? 21.Rxe8+ Rxe8 22.Qa4 c6 (f) 22...a6?? 23.Qxe8+) ; ) 19...Rxe8 20.Qa4 c6 21.Qxa7) 19.Bc4 Qa5 20.Bf7 ( 20.Be6+) ; 16.Qa4; 16.Qb3] 16...f5 David gives a "?" for black's 16th move, but its obvious intent to block out the dangerous Bd3 makes sense to me, especially in light as its potential as a "monster" unopposed bishop assuming that black accepts the offer (?) of the Rf1. After getting lost in the above variation tree, I am not ready to commit any judgement here. [ I don't think black should play 16...Bxf1 17.Bxf1 h5 18.h4 Diagram as IM Jeremy Silman would say, "the rook's not going away." ; 16...h5? Diagram 17.Bxg6; Black has to get something going, why not stir up the kingside and try to active his rooks? 16...Nf4 Diagram This was not Fritz's idea.. Fritz in the preceeding position was awash with a multitude of equal possibilities. I really wanted to play the mistake move I list above because 1) the f6 pawn has moved once.. why not take advantage of the two move first move pawn rule, 2) opposite side castling demands a free-for-all 3) moving the h pawn activates the Rh8. The problem was the Ng6 hanging. Problem solved. 17.Rxe7 ( 17.gxf4? Qxf4 Diagram 18.Nh4[] Qxh4 19.Re3 ( 19.Rxe7? Qg4+) ) 17...Nxd3 18.Re3 Nf4 19.Rc1 Ng2 20.Re2 h5 21.Kh1 h4 Diagram 22.Ng1 ( 22.Rg1 f5 Diagram 23.Ng5 hxg3 24.fxg3 f4 Diagram 25.Rexg2 Bxg2+ 26.Qxg2 fxg3 ( 26...Rf5 27.gxf4 ( 27.Nh3 f3 28.Qc2 Rfh5 29.Nf2 ( 29.Nd2) ) ) 27.Qxg3 Qxg3 28.Rxg3 Rf2 29.Kg1 Rxb2 Diagram ) 22...Bg4 ( 22...hxg3) ] I realize now, that I agree with David 100%. 16..f5 was absolutely an error. The Ng5 cripples the possibility of kingside play at least for the moment, and now the e6 square is terribly weak. Black's idea is to cash in the exchange with less weaknesses on the light squares, but somehow there is method in white's madness. The Bd3 does a nice regrouping and black is forced to give up a well developed piece. 17.Ng5 Diagram 17...Bxf1 [ I suppose it has to be perverse to consider 17...Bg4 18.f3 Bh5 looking at black's position from his point of view now, I completely agree with David. His position looks hideous to me.] 18.Bxf1 Rf6 19.Nc5 Nf8 Diagram I decided to delete the question mark by David. Although the engines light up with a quick return of material, suddenly black is faced with some serious problems. The weakening of the g5 square by 16..f5? was truly a serious error. I am beginning to be included to give it two question marks, but maybe I should hold off on that one. A serious drawback of the current move is the poor Rh8. Instead of being up an exchange black is effectively down a piece. However, the reality is that black is indeed up an exchange and the move protects a very tender e6 square. [ 19...h6 20.Qa4 ( 20.Re6 Rxe6 21.Ngxe6) ; 19...b6 20.Ba6+ Kb8 21.Qb3; 19...h5 20.Qa4 a6 21.h4 Qc6[] Diagram Black's position is truly troubling. However, perhaps I am forgetting he is up the exchange.a) At first, I really wanted to play the troubled line 21...f4 Diagram 22.Bh3+ Kb8 23.Nd7+ that turns out to be Fritz's third favorite.; b) 21...Rg8 22.Nh7 Qc6 23.Nxf6 Qxa4 24.Nxa4 gxf6 25.f4 Diagram stifling black's chance to play that move, supports my idea of how troubled black's position is, in light of the fact that this is Frtiz's second favorite move (at least without an extended think by the automaton).25...Nc6 (b) 25...Nxf4? 26.Rxe7) 26.Kf2 Diagram ; ] 20.Qa4!! Diagram Here is the position where David notes that Alan Glasscoe looked at the position and said to him, "You really have sold your soul to the devil." Now I see the point and this atheist is having a rethinking about his disbelief in god. David picks a move that engines flag as clearly better, while ignoring the possible winning back of the exchange with 20.Nf720...Kb8 [ 20...Nd7 21.Qxa7 Nxc5 22.Qa8+ Kd7 23.Qxh8 Diagram ; 20...a6 21.Qe8+ Qd8 22.Rxe7] 21.Qe8+ Nc8 22.Nf7 Rxf7 23.Qxf7 Qg6 [ 23...b6 24.Re8 Ng6 25.Nd7+ Kb7 26.Re6 Rf8 27.Nxf8 Qxf8 28.Qd7 Nge7 29.Bg2 Diagram ; 23...Qf6 24.Qxd5 c6 a) 24...Qc6 25.Na6+! Ka8 26.Qxc6 bxc6 Diagram 27.Bd3 (a) 27.Nxc7+ Kb7 28.Ne8) 27...Nd6 28.Nxc7+ Kb7 29.Re7 Ng6 30.Rxg7; b) 24...Qb6 25.Re8 c6 26.Qxf5 Qc7 27.Bh3 Ng6 28.Qxg6! Diagram 28...hxg6 29.Rxh8 a5 30.Rxc8+ Qxc8 31.Bxc8 Kxc8; c) 24...Nd6? 25.Re8+ Diagram ; ] 24.Qxd5 [ David mentions the possibility that black had been "hoping" for 24.Qe8? Diagram 24...Qxe8 25.Rxe8 Ng6 when black is OK, but the reality is that 23..Qg6 was probably black's best try... I had noted that Andy might be cracking under the pressure of defending a difficult position while material up. This is probably psychologically one of the most difficult types of chess positions to be in, however, it appears that the reality is that white has already achieved a serious edge.] 24...Nd6 25.Bb5 a6 [ David notes that 25...c6? would be followed by 26.Bxc6 Diagram "without hestitation," and this assessment is absolutely correct.26...Qf6 a) 26...h5 27.Bxb7 a5 28.Na6+ Diagram 28...Ka7 29.Qc5+ Kxb7 30.Re7+ Kxa6 31.Ra7#; b) 26...bxc6? Diagram 27.Na6+ (b) 27.Qxc6 a5 (b) 27...f4?? 28.Na6#) ) 27...Kb7 28.Re7+!! Diagram 28...Kc8 b1) 28...Kxa6 29.Qxc6+ Ka5 30.Rxa7#; b2) 28...Nd7 29.Rxd7+ Kxa6 (b2) 29...Ka8 30.Qxc6+) 30.Qxc6+ Ka5 31.Rxa7#; ; 27.Bxb7 ( 27.Re6 Diagram is an intriguing choice by the engines, but I'd better skip it.27...Nxe6 28.Qxd6+ Nc7 29.Nd7+ okay there we go.) 27...Ne4 a) 27...Ng6? 28.Na6#; b) 27...Nf7 28.Re8+ Kc7 29.Rc8+ Kb6 30.Na4#; c) 27...Nb5 28.Na6+ Qxa6 29.Bxa6 (c) 29.Re8+ Kc7 30.Rc8+ Kb6 31.Qc6+ Ka5 32.Qxa6#) ; d) 27...a5? Diagram absurdly prolonging mate past the engines' event horizons28.Qc6 (d) 28.b4 Ka7 29.Qc6; d) 28.Na6+ Ka7 29.Qc5+ Kxb7) 28...Qd8 best attempt to stop mate, according to the enginesd1) 28...Ne4 29.Qc8+ Ka7 30.Bxe4 Qe7 (d1) 30...fxe4? 31.Qb7#; d1) 30...Qf7 31.Qa8+ Kb6 32.Qb8+ Qb7 33.Qxb7#) 31.Qa8+ Kb6 32.Qb8+ Qb7 33.Qxb7#; d2) 28...Nf7 29.Re8+ Ka7 30.Ra8#; ; 28.Na6+ Qxa6] 26.Re8+ [ 26.Bxa6 b6 ( 26...bxa6 27.Re7! Ne6 ( 27...h5) ) ] 26...Ka7 27.Rd8 Diagram 27...c6 [ David correctly notes that 27...Qf7 Diagram was a better try, though after28.Rxd6 ( A Fritz thought is 28.Bc6 Qxd5 29.Bxd5 but this improves nothing.) 28...Qxd5 ( 28...cxd6?? 29.Qxf7) 29.Rxd5 axb5 30.Rxf5 When he observes that though white is ahead two pawns with a good position, and black is not mated.; It's fairly clear cut. The Nd6 is paralyzed by the mate threat and at the utter mercy of white's pieces. If 27...axb5 28.Rxd6 Diagram 28...c6 ( 28...Qxd6 29.Qxb7#) 29.Rxg6 cxd5 30.Rxg7 black is even more crippled; 27...f4 Diagram 28.Rxd6 ( 28.Bd3 Qg4 29.Rxd6 Qd1+ 30.Bf1 c6 31.Qf7) ] 28.Bxc6 Nf7 29.Be8 Nxd8 30.Bxg6 Nxg6 31.Nd7 Nc6 32.Qc5+ Ka8 33.d5 [ David missed a better move after 33.Qxf5 Rd8 Diagram 34.Qf7 Nge7 35.Ne5 g6 ( 35...Nxe5 36.dxe5 Nc6 37.Qxg7 Re8 38.f4) 36.f4 white is extremely solid and black is crushed.] 33...Nce7 [ I'm not sure why Fritz wants to trade down with 33...Nce5 34.Nxe5 Nxe5 35.Qe7 Diagram a) 35.d6 Nc6; b) 35.Qc7 Nf3+ 36.Kg2 Ne1+ 37.Kf1 Nf3 38.d6 (b) 38.h4) 38...Ne5 39.d7 Nxd7; 35...Ng6 36.Qxg7 Kb8 37.d6 Rc8 38.Qxh7 ( 38.d7 Rd8) ] 34.c4 f4 Diagram David accuses this move of being "somewhat desperate," but it is Fritz's favorite. There is nothing wrong with trying to break up white's castle in my estimation.35.Qb6 [ I agree that white should avoid 35.gxf4 Diagram 35...Re8 ( 35...Rc8? woops. 36.Nb6+) 36.d6 though it's probably a horse of half a dozen colors.] 35...Nf5 Diagram 36.Nc5 Rb8 37.Nxa6! Rf8 [ As David notes, of course not 37...bxa6?? 38.Qxa6#] 38.Nc5 Rf7 [ Supposing one could repeat moves here would be fatal 38...Rb8?? Diagram 39.Qa5#] 39.d6 fxg3 40.hxg3 [ I suppose David is correct for being pragmatic and rejecting 40.d7 gxf2+ 41.Kxf2[] Diagram ( 41.Kf1?? Ne3+) 41...Nd4+ ( 41...Nd6+ 42.Kg1 Rf8 43.Qxd6 Nf4 44.Qxf8+ Ka7 45.d8Q Ne2+ 46.Kf2 Nd4 47.Qa5#) 42.Ke3 Nc2+ Diagram 43.Kd2 ( 43.Ke2 Nd4+ 44.Kd3 Ne5+ 45.Kxd4 Diagram 45...Rxd7+ ( 45...Nxd7 46.Qxb7#; 45...Nc6+ 46.Ke3 Re7+ Diagram 47.Kd2 Rxd7+ 48.Nxd7 g6 49.Nc5 Nd8 50.Qxd8+ Ka7 51.Qc7 h6 52.Qxb7#) ) 43...Rf2+ Diagram 44.Kc1 Rf1+ 45.Kxc2 Rf2+ 46.Kc3 Rf3+ 47.Kb4 Rb3+ 48.Kxb3 Kb8 49.d8R# those pawn takes pawn check moves can go bad really easily.] 40...Ne5 41.d7 Rxd7 42.Nxd7 Nxd7 43.Qd8+ Nb8 44.Qa5+ 1-0
