Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mate in 10

Author: Art Basham

Date: 10:20:40 12/02/02

Go up one level in this thread


No, the portables do not announce mate until it gets down to about mate in 4 or
5...but most do find all the correct moves after RxP check..etc.

ArtOn December 02, 2002 at 12:29:11, John Merlino wrote:

>On December 02, 2002 at 12:07:23, Art Basham wrote:
>
>>This is a good test for portables!
>>
>>White plays Rxh6+...and mates in 10...!
>>
>>[D]3r3k/p4Qp1/7p/1b1Bp3/4Pp2/7R/4nqPP/4R2K w - -
>>
>>Saitek Travel Champion takes just 5 ply and finds it in 17 sec.
>>
>>Novag Amber takes about 25 sec.
>>
>>Fidelity Par Excellence (5 Mhz) takes 6 ply ....3 min. and 21 sec.
>>
>>Fidelity Mach 3 (16 Mhz) finds it in 27.5 sec.
>
>Are you saying that these portables also announce the Mate in 10 in this amount
>of time? If so, then that's rather impressive. Although, this is a fairly easy
>mating sequence because all of White's moves are checks.
>
>Just for comparison, CM9000, on a P3-733, finds it in less than one second:
>
>Time	Depth	Score	Positions	Moves
>0:00	1/3	2.90	6763		1.Rxh6+ gxh6 2.Qf6+ Kh7 3.Qe7+
>					Kh8 4.Qxe5+ Kh7 5.Qe7+ Kh8 6.Qxd8+
>					Kg7 7.Qe7+ Kg6
>0:00	1/4	Mate10	13475		1.Rxh6+ gxh6 2.Qf6+ Kh7 3.Qe7+
>					Kh8 4.Qxd8+ Kg7 5.Qg8+ Kf6 6.Qf7+
>					Kg5 7.Qg7+ Kh5 8.Bf7+ Kh4 9.Qxh6+
>					Kg4 10.Be6#
>0:00	1/5	Mate10	53208		1.Rxh6+ gxh6 2.Qf6+ Kh7 3.Qe7+
>					Kh8 4.Qxd8+ Kg7 5.Qg8+ Kf6 6.Qf7+
>					Kg5 7.Qg7+ Kh5 8.Bf7+ Kh4 9.Qxh6+
>					Kg4 10.Qh5#
>
>jm



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.