Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mate in 16 mystery

Author: scott farrell

Date: 04:41:16 09/05/03

Go up one level in this thread


On September 04, 2003 at 10:20:40, Dana Turnmire wrote:

>In the following position Chess Genius 7 cannot find mate after many hours of
>analysing yet Chessmaster 9000 finds mate in 16 INSTANTLY.  What gives?

my dumb java based chompster finds it in 2.2 seconds, in 385K nodes, at depth 9
with extensions all the way to depth 32.

d9/32(8) 0/31  4.73  2.213secs  382692  RD5+ KE4 RD7++ KE5 BA3 C4 BD6+ KD4 BF8++
 KE5 RD5++ KE4 RD8++ KE5+ RxR++ KD4 RD8++ KE5 RD5++ KE4 RD7++ KE5 BD6++ KD4 BB4+
 KE5 D4+ PxD3 RE7+
fail high at root
aspiration failed, faillow:false, failhi:true, research:true, score returned:4.7
3
failed at root - re-searching
d9/32(8) 0/31  496.9  2.226secs  385339  RD5+ KE4 RD7++ KE5 BA3+ C4 BD6+ KD4 BF8
++ KE5 RD5++ KE4 RD8++ KE5+ RxR++ KD4 RD8++ KE5 RD5++ KE4 RD7++ KE5 BD6++ KD4 BB
4++ KE5 D4+ PxD3 RE7++ KD4 RE4++
->9/32(8)  496.9  2.227secs  385369  RD5+ KE4 RD7++ KE5 BA3+ C4 BD6+ KD4+ BF8++
KE5 RD5++ KE4 RD8++ KE5+ RxR++ KD4 RD8++ KE5 RD5++ KE4 RD7++ KE5 BD6++ KD4 BB4++
 KE5 D4+ PxD3 RE7++ KD4 RE4++
mate in 15



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.