Author: Uri Blass
Date: 12:53:35 09/27/01
Go up one level in this thread
On September 27, 2001 at 15:23:07, Roy Eassa wrote: >On September 27, 2001 at 14:52:46, Uri Blass wrote: > >>On September 27, 2001 at 14:14:07, K. Burcham wrote: >> >>>takes shredder5 51 seconds to decide on Qh1. 1500 mhz amd >>> >>>Engine: Shredder 5 >>>by Stefan Meyer-Kahlen >>> >>> >>> 1.00 0:27 +9.84 1.dxe4 Rxd5 2.Rxg4 Bxc3 (5.687.141) 205.4 >>> 1.00 0:51 +M1++ 1.Qh1+ (10.192.541) 199.6 >>> 1.00 0:51 +M1 1.Qh1+ (10.192.542) 199.6 >>>best move: Qa1-h1 time: 0:51.058 min n/s: 199.642 nodes: 10.192.560 >>> >>>kburcham >> >>New position >>[D]8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - 0 1 >> >>Analysis by Goliath Light 1.5: >> >>1.Qh1# >> +- (#101) Depth: 4/31 00:00:15 2874kN >>1.Qh1# >> +- (#1) Depth: 4/31 00:00:15 2874kN >> >>(Blass, Tel-aviv 27.09.2001) >> >>I do not understand the first mate in 101 score >> >>Deep Fritz's analysis after more than 10 minutes of search >> >>New position >>8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - 0 1 >> >>Analysis by Deep Fritz: >> >>1.dxe4! >> +- (1.56) Depth: 1/2 00:00:00 >> > > >Is there a simple, understandable reason why several "strong" programs take so >long here? (Deep Fritz not seeing the mate in 1 after 10 minutes is >mind-boggling to me!) Yes Deep Fritz probably does a typical computer mistake of searching all the captures first. My guess is that one of the possible lines that Deep fritz searches is for example: 1.dxe4 gxf5 2.Rxg4 fxg4 3.Bxd4 Bxa5 4.exf4 cxb5 5.Rxh5 Bxb3 6.fxg4 Kxg4 7.Bxf6 Kxg3 I guess that it is only one of the lines that Deep Fritz see before looking at Qh1# Uri
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