Author: Torstein Hall
Date: 11:40:16 08/15/00
Go up one level in this thread
On August 15, 2000 at 05:55:29, Uri Blass wrote: >On August 15, 2000 at 03:15:50, Ed Schröder wrote: > >>On August 14, 2000 at 19:11:45, Olaf Jenkner wrote: >> >>>On August 14, 2000 at 08:43:08, Enrique Irazoqui wrote: >>> >>>>This one is a MES position: >>>> >>>>[D]3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - 0 1 >>>> >>>>After 6.f5, all programs I tried evaluate it from +11 to +17. >>>> >>>>Enrique >>>> >>>>[Event "?"] >>>>[Site "?"] >>>>[Date "????.??.??"] >>>>[Round "?"] >>>>[White "MES.941"] >>>>[Black "?"] >>>>[Result "*"] >>>>[SetUp "1"] >>>>[FEN "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - 0 1"] >>>>[PlyCount "11"] >>>> >>>>1. Ba4+ Kxa4 2. b3+ Kb5 3. c4+ Kc6 4. d5+ Kd7 5. e6+ Kxd8 6. f5 * >>> >>>The computer does not have to see the draw to solve this study. >>>The solution can be found, when all other moves give a worse >>>evaluation. >>>To find the value of the drawn position I analysed the position >>>after 1.Bxa4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 : >> >>There is another side effect you seem to forget. Black might for >>instance Rc6 and I am pretty sure comps will capture the rook and >>white will lose after all. >> >>Ed > >I believe that programs that can see deep enough to find 5.e6+ can also see deep >enough to avoid taking the rook at c6. > >The main problem is that crafty after a lot of hours cannot find 5.e6 and >prefers the losing 5.Bxa5. > >Uri This closed pawn chain things should be solved in eval not search. But I guess I must be dreaming.... Torstein
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.