Author: Uri Blass
Date: 23:33:56 12/18/02
Go up one level in this thread
On December 18, 2002 at 19:31:40, John Merlino wrote: >On December 18, 2002 at 15:01:46, José Antônio Fabiano Mendes wrote: > >>On December 18, 2002 at 14:58:17, José Antônio Fabiano Mendes wrote: >> >>> Peter Leko vs Ghaem Maghami, Erevan 2001 >>> [D]1n2kb1r/1bqr1ppp/p3pP2/6N1/Pp2N3/4Q3/4B1PP/1R3RK1 w >>> And here GM Leko played 20. Rxb4!! and won in a few moves. >>> Please see ==> http://www.chessgames.com/perl/chessgame?gid=1202500 >>> =================================================================== >>>In Yearbook 59 Hungarian IM Tibor Karolyi wrote a lengthy and incredibly >>>thorough survey on the Polugaevsky Variation called 'Questions About 10.exf6'. >>>But it took somebody of the stature of Peter Leko to come up with this fantastic >>>novelty 20.Rxb4!! from his game against Ghaem Maghami, Erevan World Team >>>Championship 2001. I would say there is still hope for mankind! >>>Rene Olthof Interview 2002/10/25 <== http://chess-sector.odessa.ua/olthof.htm > >CM9000, on a P3-733, finds the move in less than one second, but does not see it >as winning in a reasonable amount of time: > >Time Depth Score Positions Moves >0:00 1/3 -0.19 3513 1.Rxb4 Nc6 2.Rc4 >0:00 1/3 -0.11 4488 1.fxg7 Bxg7 2.Rxb4 O-O 3.Nf6+ Bxf6 > 4.Rxf6 >0:00 1/4 -0.54 9548 1.fxg7 Bxg7 2.Rbc1 Nc6 3.Nf6+ Bxf6 > 4.Rxf6 >0:00 1/4 -0.10 14341 1.Rxb4 Nc6 2.Rc4 h5 >0:00 1/5 -0.09 54003 1.Rxb4 Nc6 2.fxg7 Bxg7 3.Rxb7 Qxb7 > 4.Rxf7 Qb1+ 5.Rf1 Bd4 >0:02 1/6 -0.18 150376 1.Rxb4 Nc6 2.Rc4 h6 3.Nf3 Qd8 >0:07 1/7 -0.17 465161 1.Rxb4 Nc6 2.Rc4 h6 3.Nf3 Qa5 4.Nc5 >0:27 1/8 -0.03 1867184 1.Rxb4 Nc6 2.Rc4 h6 3.Nf3 Qa5 4.Rfc1 > Ne5 5.Nxe5 Qxe5 6.fxg7 Bxg7 >1:19 1/9 -0.19 5809069 1.Rxb4 Nc6 2.Rc4 h6 3.Nf3 Qd8 4.Rfc1 > Na5 5.fxg7 Bxg7 6.Rc5 O-O >6:11 1/10 -0.19 29216306 1.Rxb4 Bxe4 2.fxg7 Bxg7 3.Qxe4 > Nc6 4.Rc4 Qb6+ 5.Kh1 Ne5 6.Rc8+ > Ke7 7.a5 Qd6 8.Rxh8 Bxh8 9.Qxh7 > >jm unfortunately the wrong position was posted. 1.Rxb4 is trivial for computers. The main problem is to find 2.Nxe4 that leko found and not 2.fxg7 hope that it is a better test position but not sure about it because the question is if 2.Nxe4 is the only way to win. [D]1n2kb1r/2qr1ppp/p3pP2/6N1/PR2b3/4Q3/4B1PP/5RK1 w k - 0 2 Uri
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