Author: John Merlino
Date: 10:19:40 04/15/03
Go up one level in this thread
On April 15, 2003 at 11:44:17, Robin Smith wrote: >Malaniuk - Ivanchuk >URS-ch55 Moscow 1988 >1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Be7 6.e4 dxe4 7.fxe4 e5 8.d5 Ng4 9.Nf3 >Bc5 10.b4 Bf2+ 11.Ke2 c5 12.Nb5 a6 13.Qa4 > >[D] rnbqk2r/1p3ppp/p7/1NpPp3/QPP1P1n1/P4N2/4KbPP/R1B2B1R b kq - 0 13 > >Here Ivanchuck played 13...axb5!! and went on to win. After the game moves of >14.Qxa8 Bd4! computer evaluations mostly are in White's favor, but computer vs. >computer match results strongly favor Black! Does any program find 13...axb5! >and after 14.Qxa8 does any program find 14...Bd4! > >Robin Here's the whole game: [Event "URS ch"] [Site "Moscow RUS"] [Date "1988.07.??"] [Round "11"] [White "Malaniuk, Vladimir P"] [Black "Ivanchuk, Vassily"] [TimeControl "-"] [Result "0-1"] [ECO "E20"] [WhiteELO "2520"] [BlackELO "2625"] [WhiteTitle "IGM"] [BlackTitle "FM"] [WhiteCountry "URS"] [BlackCountry "URS"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Be7 6.e4 dxe4 7.fxe4 e5 8.d5 Ng4 9.Nf3 Bc5 10.b4 Bf2+ 11.Ke2 c5 12.Nb5 a6 13.Qa4 axb5 14.Qxa8 Bd4 15.Nxd4 cxd4 16.Qxb8 O-O 17.Ke1 Qh4+ 18.g3 Qf6 19.Bf4 g5 20.c5 exf4 21.Qd6 Qg7 22.Bd3 Ne5 23.Kd2 f3 24.Qe7 g4 25.Bxb5 Ng6 26.Qg5 h6 27.Qh5 d3 28.Bxd3 Re8 29.h3 Re5 30.hxg4 Rxh5 31.gxh5 Ne5 32.Rae1 Qg5+ 33.Kc2 f2 34.Rd1 Qe3 0-1 Taking a brief amount of time to go through the game with Chessmaster 9000 on a humble P3-733, CM9000 thinks that White is winning all the way until 28.Bxd3?, at which point the eval immediately goes toward Black's favor. CM9000's analysis of that position is as follows: [D]2b2rk1/1p3pq1/6np/1BPP3Q/1P2P1p1/P2p1pP1/3K3P/R6R w - - 0 28 Time Depth Score Positions Moves 0:00 1/4 2.63 7053 28.Bxd3 Qb2+ 29.Ke3 Kg7 30.Rad1 Re8 0:00 1/4 2.65 13850 28.Rab1 f5 29.Bxd3 fxe4 30.Bxe4 0:00 1/5 2.01 17825 28.Rab1 f5 29.d6 fxe4 30.Qd5+ Kh7 31.Qxe4 0:00 1/5 2.16 29163 28.Bxd3 Re8 29.c6 Qb2+ 30.Ke3 bxc6 31.dxc6 0:00 1/5 2.24 59420 28.Ke3 d2 29.Kxd2 Qd4+ 30.Kc2 Qxe4+ 31.Bd3 Qe3 32.Bxg6 fxg6 33.Qxg6+ Kh8 0:01 1/6 1.77 106940 28.Ke3 f5 29.d6 Ne5 30.exf5 Bxf5 31.Kf2 0:01 1/6 1.98 114647 28.Bxd3 Re8 29.c6 Qb2+ 30.Ke3 bxc6 31.dxc6 Rd8 0:02 1/7 1.21 197414 28.Bxd3 Re8 29.c6 bxc6 30.d6 Re5 31.d7 Bxd7 0:05 1/7 1.92 414283 28.Ke3 f5 29.d6 d2 30.Kxd2 Be6 31.e5 Nxe5 32.Rhe1 0:05 1/7 2.00 450945 28.Rab1 f5 29.d6 Ne5 30.Bxd3 Nxd3 31.Kxd3 fxe4+ 32.Kxe4 Bf5+ 33.Qxf5 Rxf5 34.Kxf5 0:08 1/8 1.99 665136 28.Rab1 f5 29.h3 fxe4 30.hxg4 Kh7 31.g5 e3+ 32.Kxe3 Qe5+ 33.Kd2 0:17 1/9 1.76 1399974 28.Rab1 f5 29.h3 fxe4 30.hxg4 Kh7 31.g5 e3+ 32.Kxe3 Qe5+ 33.Kd2 Qe2+ 34.Kc3 1:02 1/10 1.90 5325204 28.Rab1 f5 29.h3 fxe4 30.hxg4 Ne5 31.Qxh6 Qxh6+ 32.Rxh6 f2 33.Rh5 e3+ 34.Kc3 f1=Q 35.Rg5+ Kh7 36.Rxf1 Rxf1 37.Rxe5 3:19 2/11 1.55 17313080 28.Rab1 f5 29.e5 Nxe5 30.Rhe1 f2 31.Re3 Nf3+ 32.Rxf3 gxf3 33.Qxf3 Qg5+ 34.Qe3 Qxe3+ 35.Kxe3 Rd8 36.d6 After 28.Bxd3: Time Depth Score Positions Moves 0:00 1/3 2.63 1950 28...Qb2+ 29.Ke3 Kg7 30.Rad1 Re8 0:00 1/4 3.20 5695 28...Qb2+ 29.Ke3 Kg7 30.Rhb1 Qc3 31.Rd1 0:00 1/4 2.16 13033 28...Re8 29.c6 Qb2+ 30.Ke3 bxc6 31.dxc6 0:00 1/5 1.98 36377 28...Re8 29.c6 Qb2+ 30.Ke3 bxc6 31.dxc6 Rd8 0:00 1/6 1.21 67424 28...Re8 29.c6 bxc6 30.d6 Re5 31.d7 Bxd7 0:01 1/7 -0.03 139107 28...Re8 29.c6 bxc6 30.Rac1 Re5 31.Qxe5 Nxe5 32.dxc6 0:03 1/8 -0.28 378132 28...Re8 29.h3 Re5 30.hxg4 Rxh5 31.gxh5 Qb2+ 32.Ke3 Ne5 33.Rad1 0:07 1/9 -0.44 732304 28...Re8 29.h3 Re5 30.hxg4 Rxh5 31.gxh5 Qb2+ 32.Bc2 Qd4+ 33.Bd3 Ne5 0:18 1/10 -0.51 1869258 28...Re8 29.h3 Re5 30.hxg4 Rxh5 31.gxh5 Qb2+ 32.Ke3 Ne5 33.Raf1 Bd7 0:57 2/11 -0.61 6097333 28...Re8 29.h3 Re5 30.hxg4 Rxh5 31.gxh5 Qb2+ 32.Ke3 Ne5 33.Rhf1 Bh3 34.Rab1 Qxa3 5:14 3/12 -1.02 32828718 28...Re8 29.Rhd1 Re5 30.Qxe5 Qxe5 31.Kc2 Bd7 32.Kb3 f5 33.exf5 Ne7 34.c6 Qxd5+ 35.Bc4 jm
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