Author: Robert Hyatt
Date: 05:45:22 12/14/00
Go up one level in this thread
On December 13, 2000 at 02:18:36, Bruce Moreland wrote: >On December 12, 2000 at 17:23:12, Tim Mirabile wrote: > >>Perhaps this position: >> >>[D]5rk1/1p1b2pp/3P4/1P1R1p2/p3pP2/8/P3QKPP/2r5 w - - 0 32 >> >>...since 32.Re5 seems to be a point of no return as far as giving back the >>material goes. > >Whatever version of mine that I have on my old P6/200 (1996 tournament machine) >finds this in about 8 minutes with a score of +1.6, and the PV shows the king >running up and supporting the pawn. It failed high on it after 2 minutes, but >it lost it after it failed low on the re-search. Next ply it got it and kept it >for over an hour. > >So I think that Atarov is mistaken, if 32. ? is the problem. > >bruce I would agree. I get the first "whiff" at ply=12 after 30 seconds or so. Re5 pops up to +.5, but then either h5 or g5 (don't remember which) replaces it with +.6... at ply=14, Re5 fails high (takes 6-7 minutes on my quad) to +1.6 or so and doesn't change through depth 16 to any other move. > >>On December 12, 2000 at 16:26:21, David Eppstein wrote: >> >>>In >>>http://www.kasparovchess.com/serve/templates/folders/show.asp?p_docID=13535&p_docLang=EN >>>we have yet another claim that "no computer can find this combination". He >>>means the final moves of the game where Shirov, ahead in material, drops back to >>>material equality and allows his opponent to queen first in order to get a >>>mating attack. >>> >>>I'm not pasting a FEN because I'm not really sure where the combo starts -- >>>maybe move 30, where he deserts the back rank to set up the material exchanges? >>> >>>Shirov - Grischuk, FIDE KO 2000 >>>1 e4 e5 2 Nf3 Nc6 3 Bb5 Nf6 4 O-O Bc5 5 Nxe5 Nxe4 6 Qe2 Nxe5 7 d4 Be7 8 Qxe4 Ng6 >>>9 f4 c6 10 Bd3 d5 11 Qe2 f5 12 Nd2 O-O 13 Nf3 Nh8 14 Bd2 a5 15 c4 Nf7 16 cxd5 >>>cxd5 17 Rac1 Bf6 18 b4 a4 19 b5 Re8 20 Ne5 Nd6 21 Bb4 Ne4 22 Bxe4 dxe4 23 Rfd1 >>>Be6 24 d5 Bd7 25 Nc6 Qc8 26 Ne7+ Bxe7 27 Rxc8 Raxc8 28 Bxe7 Rxe7 29 d6 Rf7 30 >>>Rd5 Rc1+ 31 Kf2 Rf8 32 Re5 Rfc8 33 Re7 R1c2 34 Rxd7 Rxe2+ 35 Kxe2 b6 36 Rb7 Rc2+ >>>37 Ke3 Rc3+ 38 Kd4 Rd3+ 39 Ke5 e3 40 Ke6 h6 41 Re7 Rd4 42 Kd7 Re4 43 Rxe4 fxe4 >>>44 Ke7 1-0 >>> >>>Is it true that no computer can find this?
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