Author: Terry McCracken
Date: 07:48:11 11/25/02
Go up one level in this thread
On November 25, 2002 at 01:08:27, Uri Blass wrote: >On November 24, 2002 at 13:22:46, Terry McCracken wrote: > >>On November 24, 2002 at 10:23:38, Robert Hyatt wrote: >> >>>On November 23, 2002 at 19:16:23, Jay Hysenbeg wrote: >>> >>>>On November 23, 2002 at 08:17:02, Terry McCracken wrote: >>>> >>>>>On November 23, 2002 at 00:32:08, Robert Hyatt wrote: >>>>> >>>>>>On November 23, 2002 at 00:13:32, Terry McCracken wrote: >>>>>> >>>>>>>On November 22, 2002 at 23:45:01, Jay Hysenbeg wrote: >>>>>>> >>>>>>>>[D]8/4p3/4Q3/8/8/k1p3PP/1q3P1K/8 w - - 0 1 >>>>>>>>wKh2,Qe6,Pf2,g3,h3/bKa3,Qb2,Pc3,e7 >>>>>>>> >>>>>>>>is this a problem with my deepfritz7 or does this happen with your df7 too. mine >>>>>>>>fails to see that Qxe7 is a loosing line >>>>>> >>>>>> >>>>>>Is it certain Qe7 loses? All I can see is a long series of checks and I don't >>>>>>see how black can find a safe haven from them to promote the pawn... >>>>>> >>>>>>I let Crafty run a while and it says 0.00... >>>>> >>>>> >>>>>Bob White can't lose, I just inserted the [D] to look at the position. >>>>> >>>>>It looked totally uninteresting. >>>>> >>>>>Terry >>>>chesstiger 15/14 and gambit tiger both see that Qxe7 is losing for white score >>>>jumps by 5 pawns >>> >>> >>>Would you post the "losing" line? I don't see how black can ever escape the >>>checks. >> >>Bob I looked at it again and it appears I really underestimated the position! >> >>After 1.Qxe7+?? ...Ka2!! going to b1 and it really goes down hill for White >>quickly! >> >>I should have seen this...arrghh! getting rusty...."creak"....sigh... >> >>Terry >> >>P.S. 1...Kb3 is ok I think but Ka2!! and White will have to resign, Black will >>get out of check and promote his pawn. >> >>Try it yourself, you'll see White starts to lose ground for grabbing the pawn. >> >>It's a tricky endgame and Fritz 7 is slower than Tiger to spot the loss. >>HIARCS 8, Junior 7, Shredder 6 all see a lost position but not straight away. >> >>Only Tiger spots it instantly! Bravo Christophe! >> >> >>Juni > >I guess that tiger see is based on evaluation and it may see a wrong win when >there is only a draw(I do not know if this is the case). > >I expect intelligent programs to see that black is better(unless they can see >that white can force a draw) but I also expect them not to evaluate the position >as +5. > >As a human I think that only black can win the endgame so the score should be >better for black unless I see a forced draw. > >Uri You rely too much on computers....Qxe7+?? loses for White and Qa6+!! draws for White.
This page took 0.01 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.