Author: Uri Blass
Date: 10:45:44 12/29/04
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On December 29, 2004 at 12:54:34, Drexel,Michael wrote: >On December 29, 2004 at 11:39:10, Misael Banuelos wrote: > >>The next annotated game was published at the chess column of the Spanish >>newspaper 'El Pais' on December 24, and it was written by chess journalist and >>Fide Master Leontxo Garcia. >> >>Yesterday I decided to post this message in this forum and I have translated it >>into English. I hope I didn't commit too many mistakes in this language. >> >>Regards. >> >>MB >> >>--- >> >> >>[D] 6k1/6b1/1B1p2qp/3Pp1p1/2r1p3/3n2P1/P2QB2P/R5K1 w - - 0 27 >> >>Position after 26...Rxc4 >> >>*Silicon is silly* >> >>White: Gelfand. >>Black: Sutovski. >>King's Indian Defence. >>Pamplona, December 22, 2004. >> >>In the opening round Israeli Boris Gelfand manages very well a position that >>computers don't understand yet. >> >>1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Nf3 e5 7.Be3 h6 8.0-0 Ng4 9.Bc1 >>Nd7 10.d5 Ngf6 11.Be3 Ng4 12.Bd2 f5 13.g3 fxe4 14.Nh4 g5 15.Ng6 Nxf2 16.Rxf2 >>Rxf2 17.Kxf2 Qf6+ 18.Kg1 Qxg6 19.Nb5 Nc5 20.Nxc7 Rb8 21.Be3 b6 >> >>Black's advantange, a pawn, is very little important: the bishop on g7 is almost >>useless and the pawns on a7, b6 and d6 are weak. >> >>22.Nb5 Nd3?! >> >>As the reader is going to understand very soon, it was better 22...a6 >> >>23.Nxa7 Nxb2 24.Qd2 Nd3 25.Nxc8 Rxc8 26.Bxb6 Rxc4 (diagram) >> >>Gelfand has got a clear advantage, thanks to his passed pawn on a2. But chess >>programs don't appreciate it, not even after a long calculation time. It is due >>to the so called 'horizon effect': Silicon is uncapable of understanding that >>the little pawn on a2 is a potential queen, something that any chess player of >>certain skill sees it in tenths of second. >> >>27.a4! Qe8 28.a5! Ra4 >> >>The computer shows that 28...Qb5 is advantageous for Black, without noticing >>that after 29.Be3 Qxd5 30.a6 Rc8 31.a7 Qa8 32.Bg4 Rf8 33.Be6+ Kh8 34.Qa2, with >>the threat of Bd5, 34...Nb4 35.Qb3, Black must resign. > >Complete nonsense... > >Is "the Computer" Fritz 5.32 on a P200?? No need for P200 Fritz5.32 and a lot of chess programs cannot see it even on better hardware. >Fritz 8 and Shredder 8 quickly think white is slightly better after 28...Qb5. > >Michael I know that Fritz8 can often sacrifice material for no reason(it lost a game against older version of movei exactly for that purpose) so I dislike Fritz8. The first program that I tried(guess which program) did not see quickly that white is slightly better after 28...Qb5. [D]6k1/6b1/1B1p3p/Pq1Pp1p1/2r1p3/3n2P1/3QB2P/R5K1 w - - 0 1 I tried a better program like fruit2 and it also does not see it in a short time and even after some minutes can see only 0.00 score Analysis by Fruit 2.0: 3.Be3 Ra4 4.Rxa4 Qxa4 5.Qc3 Bf8 6.Bg4 Be7 7.Qc8+ Kg7 8.Qb7 Qa1+ 9.Kg2 Qa2+ 10.Kh1 ³ (-0.48) Depth: 12/36 00:00:08 7499kN 3.Be3 Ra4 4.Rxa4 Qxa4 5.Qc3 Bf8 6.Bg4 Be7 7.Qc8+ Kg7 8.Qb7 Qa1+ 9.Kg2 Qa2+ 10.Kh1 Kf7 11.Be6+ Kf6 ³ (-0.42) Depth: 13/36 00:00:11 10971kN 3.Be3 Ra4 4.Rxa4 Qxa4 5.Qc3 Bf8 6.Bg4 Qb5 7.Be6+ Kh8 8.Bf5 Kg7 9.Qc7+ Kf6 10.Qc8 Qb1+ 11.Kg2 Qb2+ 12.Kh1 ³ (-0.36) Depth: 14/38 00:00:19 18674kN 3.Be3 Ra4 4.Rxa4 Qxa4 5.Qc3 Bf8 6.Bg4 Kh8 7.Qc8 Qa1+ 8.Kg2 Qb2+ 9.Kh1 Qb1+ 10.Bg1 Qf1 11.Qf5 Qxf5 12.Bxf5 ³ (-0.26) Depth: 15/38 00:00:42 40167kN 3.Be3 Ra4 4.Rxa4 Qxa4 5.Qc3 Bf8 6.Bg4 Kg7 7.Qc7+ Kg6 8.Qb8 Kf7 9.Qb7+ Be7 10.Bh5+ Kf6 11.a6 Qa1+ 12.Kg2 Qa2+ 13.Kh1 = (-0.07) Depth: 16/46 00:02:02 113462kN 3.Be3 Ra4 4.Rxa4 Qxa4 5.Qc3 Bf8 6.Bg4 Kg7 7.Qc7+ Kg6 8.Qb8 Kg7 9.Qc7+ = (0.00) Depth: 17/48 00:03:58 222044kN (, MyTown 29.12.2004) Uri
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