Author: F. Huber
Date: 16:17:13 01/17/04
Go up one level in this thread
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.
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