Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Endgame test position

Author: Brian Katz

Date: 20:52:22 01/15/04

Go up one level in this thread


On January 15, 2004 at 14:19:20, Drexel,Michael wrote:

>On January 15, 2004 at 13:39:57, Günther Simon wrote:
>
>>On January 15, 2004 at 13:33:21, Drexel,Michael wrote:
>>
>>>On January 15, 2004 at 12:24:35, Günther Simon wrote:
>>>
>>>>On January 15, 2004 at 12:18:28, Drexel,Michael wrote:
>>>>
>>>>>On January 15, 2004 at 09:05:19, Günther Simon wrote:
>>>>>
>>>>>>[D]8/p7/1p5p/5k2/8/b1p3P1/3pK1PP/3B4 w - - 0 47
>>>>>>
>>>>>>This game was played in Class B of my RWBC tournament circuit.
>>>>>>(PIV 2.67Ghz, around 128MB hash each program, 4men tablebases
>>>>>>+ two sets of 5men, 15min/40moves, ponder off)
>>>>>>
>>>>>>ExChess had a completely won game, but decided one move before
>>>>>>to exchange R vs. N+P on f5. It appears to me that this position
>>>>>>is by all means a draw, but no program will find it.
>>>>>
>>>>>This can't be true. Black has 4 connected passers.
>>>>>I think black wins with 47...Ke5.
>>>>
>>>>You should elaborate a bit more here of course, as a good player I think you
>>>>know, how one bishop can stop up to seven pawns building 'stairs'.
>>>>Same motive applies here later and dont forget Black King must stop
>>>>Whites later built passer too! ( the passer is inevitable...)
>>>>Please have a deeper look at it again after 48.Kd3 etc...
>>>>
>>>>Günther
>>>
>>>That's an easy win. White King and bishop can't stop the black pawns and prevent
>>>blacks King from advancing simultaneously.
>>>The white passer is not a problem. It will be stopped with Bf8.
>>>Basically you just move up those pawns to the Qeening square.
>>>b5,a5,a4 etc.
>>>
>>>Michael
>>
>>I really dont know what you are talkin' about here, because the Black
>>bishop cant go away for a long time, as c3 falls instantly?
>>
>>Günther
>>
>>P.S.
>>Back to the real position, 47.Bc2+, Ke5 48.Kd3 your move...
>
>Bb2

Hello,

This position is pretty straight forward for Black. Protect the c-pawn and then
just advance the pawns. Sac a pawn(s) when necessary to divert the White King to
allow Black's King to advance to d3 or e2.
As in a line as shown below:

8.Bc2+ Ke5 9.Kd3 Bb2 10.Kc4 b5+ 11.Kxb5 Kd4 12.Kb4 Ke3 13.Bd1 Kd3 14.Kb3 a5
15.g4 a4+ 16.Kxa4 c2

Something similar to this should win easily for Black!

Brian



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.