Author: Vincent Lejeune
Date: 04:55:46 12/15/05
Go up one level in this thread
On December 15, 2005 at 04:02:38, emerson tan wrote: >I posted the position of Nikolic vs Fischer 5 years ago in this forum and no >program can find Fischer's 19...Bg4!! even if you let all the programs compute >for several days. > >The position is sound because I let the computer play the position and black >always win even if both white and black engine asses the position as winning for >white. > >Now 5 years after with several times faster hardware and emergence of strong >programs and improved old programs, Can any program find Fischer's 19...Bg4 !! > > Nikolic,E - Fischer,R, Vinkovci 1968 >[D] r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - 0 1 Are you sure this sac is winning ? 23.Kg1 seems strange [d]r3r1k1/pp1q1p2/2p2npb/PPPp4/3PpN2/2N1PpP1/1R1B1P1K/3Q3R w - - 0 23 TogaIIa after 2 sec and Rybka after 29 sec give up with 23.Kg1 Analysis by Toga II 1.1a: ... 23.Rg1 Rg7 24.a6 Fxf4 25.exf4 Th8 26.Txh8 Txh8 27.f5 gxf5 28.bxc6 bxc6 +- (1.47) Profondeur: 9/25 00:00:00 488kN 23.Ch3 Rg7 24.Df1 Th8 25.Rg1 Tab8 26.a6 bxa6 27.bxc6 Dxc6 28.Txb8 Txb8 +- (1.53) Profondeur: 9/25 00:00:02 1392kN 23.Ch3 Rg7 24.Rg1 Tab8 25.Db1 Dc7 26.b6 axb6 27.axb6 Dd7 28.Ta2 +- (1.58) Profondeur: 10/28 00:00:04 2524kN 23.Ch3 Rg7 24.Rg1 Tab8 25.Da4 Dc7 26.b6 axb6 27.axb6 De7 28.Da7 Th8 +- (1.64) Profondeur: 11/28 00:00:07 4407kN 23.Ch3 Rg7 24.Rg1 a6 25.bxc6 bxc6 26.Db1 Th8 27.Tb7 Dg4 28.Db6 De6 29.Dc7 +- (1.76) Profondeur: 12/32 00:00:18 10816kN 23.Ch3 Rg7 24.Rg1 Th8 25.a6 Fxe3 26.bxc6 Dg4 27.Fxe3 Txh3 28.Txh3 Dxh3 29.Df1 Dxf1+ 30.Rxf1 bxc6 31.Tb7 +- (1.73) Profondeur: 13/37 00:00:33 19690kN 23.Ch3 Rg7 24.Rg1 Th8 25.bxc6 bxc6 26.Db1 Df5 27.Tb7 Fxe3 28.Fxe3 Txh3 29.Txh3 Dxh3 30.Df1 Dxf1+ 31.Rxf1 Th8 32.Re1 a6 +- (1.58) Profondeur: 14/37 00:00:47 28258kN 23.Ch3 Rg7 24.Rg1 Th8 25.bxc6 bxc6 26.Db1 Dc8 27.Tb7 Fxe3 28.Fxe3 Txh3 29.Txh3 Dxh3 30.Df1 Dxf1+ 31.Rxf1 Cg4 32.Ff4 Th8 33.Rg1 +- (1.48) Profondeur: 15/39 00:01:14 45092kN Analysis by Rybka 1.0 Beta 32-bit: ... 23.Rg1 Rg7 24.Ch3 Tab8 25.a6 cxb5 26.Txb5 ± (1.32) Profondeur: 10 00:00:05 362kN 23.Rg1 Rg7 24.Ch3 Teb8 25.Db3 Dc8 26.Cf4 Cg4 ± (1.34) Profondeur: 11 00:00:10 624kN 23.Rg1 Fxf4 24.exf4 Rg7 25.bxc6 bxc6 26.Df1 Th8 27.Txh8 Txh8 ² (0.55) Profondeur: 12 00:00:24 1616kN 23.bxc6 bxc6 24.Ch3 Cg4+ 25.Rg1 Rg7 26.Db1 Th8 27.Tb7 Dc8 ± (1.05) Profondeur: 12 00:00:29 1993kN 23.Ch3 Rg7 24.Rg1 Teb8 25.Da4 Cg4 26.a6 De6 27.Tb1 ± (1.39) Profondeur: 12 00:01:03 4318kN 23.Ch3 Rg7 24.Rg1 Tab8 25.Db3 Dc7 26.b6 axb6 27.cxb6 Dd7 +- (1.49) Profondeur: 13 00:01:48 7503kN 23.Ch3 Rg7 24.Rg1 Tab8 25.Db3 Th8 26.bxc6 Dxc6 27.Tb1 Dd7 +- (1.49) Profondeur: 14 00:02:29 10406kN 23.Ch3 Rg7 24.Rg1 a6 25.bxc6 bxc6 26.Df1 Th8 27.Ca4 Dg4 +- (1.47) Profondeur: 15 00:04:02 16959kN [Event "Vinkovci"] [Site "Vinkovci"] [Date "1968.??.??"] [Round "9"] [White "Nikolic, Emil"] [Black "Fischer, Robert James"] [Result "0-1"] [ECO "E61"] [PlyCount "62"] [EventDate "1968.09.??"] [EventRounds "13"] [EventCountry "YUG"] 1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 d6 5. e3 Nf6 6. Nge2 O-O 7. O-O c6 8. d4 Re8 9. Rb1 e4 10. b4 Bf5 11. h3 h5 12. Nf4 Nbd7 13. a4 Nf8 14. c5 d5 15. b5 N8h7 16. Bd2 Ng5 17. Rb2 Qd7 18. Kh2 Bh6 19. a5 Bg4 20. hxg4 hxg4 21. Rh1 Nf3+ 22. Bxf3 gxf3 23. Kg1 Bxf4 24. exf4 Kg7 25. f5 Rh8 26. Bh6+ Rxh6 27. Rxh6 Kxh6 28. Qd2+ g5 29. bxc6 Qxf5 30. Nd1 Qh3 31. Ne3 Kg6 0-1
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