Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Very Difficult Test Move

Author: Uri Blass

Date: 11:07:03 03/11/02

Go up one level in this thread


On March 11, 2002 at 13:39:47, Vincent Diepeveen wrote:

>On March 10, 2002 at 19:44:17, Matthias Gemuh wrote:
>
>>On March 10, 2002 at 18:03:30, Art Basham wrote:
>>
>>>Maybe this was aleady posted here recently, I do not remember...
>>>but none of my chess programs will play 1. Bd3+...!!
>>>
>>>If some here with faster computors want to give it a try,
>>>it will be interesting to see what program finds it - (if any).
>>>
>>>[D]r1bq1r2/p2np2k/3p4/3pP3/2pP3N/4Q3/PP4P1/2KR1B2 w - -
>>>
>>>White gains time (with a check) and prepares to play rook to h1..etc.
>>
>>
>>My program (HyLogicChess) clears the way for the rook in different manner.
>>[1] (-4.85)  1.e6 (00h:00m:00s)
>>[2] (-4.86)  1.e6 Nf6 (00h:00m:00s)
>>[3] (-4.11)  1.Bxc4 Qc7 2.Qd3 Kg8 (00h:00m:00s)
>>[4] (-3.45)  1.Bxc4 dxe5 2.Bxd5 Qc7 3.Qc3 (00h:00m:00s)
>>[5] (-2.15)  1.Bxc4 dxc4 2.Qe4 Kh8 3.Ng6 Kg8 4.Nxf8 Rb8 (00h:00m:09s)
>>[6] (-1.59)  1.Bxc4 Nxe5 2.dxe5 dxc4 3.Qe4 Bf5 4.Nxf5 Kg6 (00h:01m:21s)
>>[7] (-1.85)  1.Bxc4 Qc7 2.Qd3 Kh8 3.Rh1 Qxc4 4.Qxc4 dxc4 5.Nf5 Kg8 6.Nxe7 Kg7
>>7.exd6 (00h:19m:24s)
>
>7 ply in 19 minutes?
>
>What programming language are you using, Java?

Branching factor of 9 or more than 10 in the last 2 plies is one of the reasons
for the result.

Uri



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.