Author: Vincent Lejeune
Date: 17:23:42 01/17/04
Go up one level in this thread
On January 17, 2004 at 19:17:13, F. Huber wrote: >On January 17, 2004 at 18:10:44, Harald Faber wrote: > >>On January 17, 2004 at 12:45:30, Christophe Theron wrote: >> >>>On January 17, 2004 at 07:59:09, Harald Faber wrote: >>> >>>>On January 17, 2004 at 06:07:33, Ed Schröder wrote: >>>> >>>>>On January 16, 2004 at 19:06:21, Harald Faber wrote: >>>>> >>>>>> >>>>>>[D]2r1k1b1/pp4Q1/3p4/q5p1/4P3/1PN2P2/PP6/1K5R b - - 0 1 >>>>>> >>>>>>Analysis by Shredder 8: >>>>>> >>>>>>1. +- (#153): 33...Lf7 34.Th8+ Ke7 35.Txc8 d5 36.Sxd5+ Kd6 37.Dxf7 De1+ 38.Tc1 >>>>>>Dc3 39.bxc3 b5 40.Dxa7 Kc6 41.Dc7# >>>>>>2. +- (#151): 33...Tc7 34.Dxg8+ Kd7 35.Sd5 Tc2 36.Th7+ Kc6 37.Dc8+ Dc7 38.Txc7+ >>>>>>Kb5 39.Kxc2 a5 40.Dxb7# >>>>>>3. +- (#7): 33...De5 34.Dxg8+ Kd7 35.Th7+ De7 36.Txe7+ Kxe7 37.Dxc8 >>>>> >>>>>Harald, >>>>> >>>>>Can you proof your claim? >>>>> >>>>>Ed :) >>>> >>>>Sure. >>>>33...Lf7 34.Th8+ Ke7 35.Txc8 d5 36.Sxd5+ Kd6 37.Dxf7 De1+ 38.Tc1 Dc3 39.bxc3 b5 >>>>40.Dxa7 Kc6 41.Dc7# is #8, not #153 >>>> >>>>33...Tc7 34.Dxg8+ Kd7 35.Sd5 Tc2 36.Th7+ Kc6 37.Dc8+ Dc7 38.Txc7+ Kb5 39.Kxc2 a5 >>>>40.Dxb7# is #7, not #151. >>>> >>>>Do you count 151 or 153 moves in those mate lines? ;-))) >>> >>> >>>You did not give proof that there is no mate in 153! :) >>> >>> Christophe >> >> >>No, I gave only the proof that the given mating line is a mate in 8 and not a >>mate in 153 as Shredders eval suggests... ;) >> >>For the record: I don't consider this a serious bug. It is just a minor flaw the >>user should be aware of. > >Hello Harald, > >you are in ´good company´ with Shredder 8 ;-) - >both of you are wrong! > >After 33...Lf7 it´s NOT #8 (your wrong guess) >After 33...Tc7 it´s NOT #7 (------ " -------) >After 33...De5 it´s NOT #7 (Shredders guess) ---> is indeed #8 > >I´ve tested all three moves (33...) with ChestUCI, and all of those three >pvs are not correct - >so not only Shredder but also you must have a bug. ;-) > >Regards, >Franz. CM9000, 5 best moves in mentor: Time Depth Score Positions Moves 4:02 5/13 Mate11 116315768 1...Bf7 2.Rh8+ Ke7 3.Rxc8 Kd7 4.Rb8 Kc7 5.Qf8 Kc6 6.Qxf7 Qb4 7.Rc8+ Kb6 8.Nd5+ Ka6 9.Nxb4+ Kb6 10.Qc7+ Kb5 11.Qxb7+ Ka5 12.Nc6# 1:27 4/12 Mate09 40957669 1...Rc7 2.Qxg8+ Kd7 3.Nd5 Kc6 4.Rc1+ Kb5 5.Nxc7+ Qxc7 6.Rxc7 Kb6 7.Qb8 Kb5 8.Rxb7+ Kc5 9.Qxa7+ Kc6 10.Qb6# 1:37 4/12 Mate08 46192867 1...Rxc3 2.Qxg8+ Kd7 3.Rh7+ Kc6 4.Qc8+ Kb5 5.bxc3 Qxc3 6.a4+ Kb6 7.Qxc3 Ka6 8.Qb4 d5 9.Qb5# 1:41 4/12 Mate08 48207335 1...Qe5 2.Qxg8+ Kd7 3.Rh7+ Qe7 4.Rxe7+ Kxe7 5.Qg7+ Kd8 6.Nd5 Rc1+ 7.Kxc1 b5 8.Qc7+ Ke8 9.Qe7# 1:43 4/12 Mate06 49844606 1...Qxa2+ 2.Kxa2 Bf7 3.Rh8+ Ke7 4.Rxc8 Ke6 5.Nd5 Kd7 6.Qxf7+ Kxc8 7.Qc7# ;)
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.