Author: Terry McCracken
Date: 13:57:54 10/15/01
Go up one level in this thread
On October 15, 2001 at 12:22:58, leonid wrote: >On October 14, 2001 at 22:55:30, Terry McCracken wrote: > >>On October 14, 2001 at 22:44:57, leonid wrote: >> >>>On October 14, 2001 at 19:31:31, Terry McCracken wrote: >>> >>>>On October 14, 2001 at 11:28:53, Terry McCracken wrote: >>>> >>>>>On October 13, 2001 at 23:48:51, Miguel A. Ballicora wrote: >>>>> >>>>>>This is WCSAC 738: >>>>>>[D]r1b2r2/3pNpkp/3pn1p1/2pN3P/2PnP3/q3QP2/4BKP1/1R5R w - - bm Qh6+; >>>>>> >>>>>>Der Bringer with "two best options" in analyzing mode finds >>>>>>after 10 plies that Qh6+ is Mate in 11. Funny is that the uninteresting >>>>>>move Qd2 is also mate in 11!! Unbelievable what computers can find. >>>>>>Another cook and another position from WCSAC eliminated. >>>>>> >>>>>>Regards, >>>>>>Miguel >>>>> >>>>>The position is missing a couple of pawns, one crucial! >>>>> >>>>>[D]r1b2r2/1p1pNpkp/3pn1p1/2pN3P/2PnP3/q3QP2/p3BKP1/1R5R w - - bm Qh6+; >>>>> >>>>> >>>>>So the answer is *only* Qh6+!! >>>>> >>>>>Terry >>> >>>Pretty good position! Was not able to see by myself which move must lead to >>>mate. Program see much better. >>> >>>Celeron 600Mhz. No hash. LLchess. Selective search find mate in 11 moves, in >>>0.055 sec. E3-H6. >>> >>>Leonid. >> >>I first saw this position in 1989, I solved it as an excercise in mating >>attacks. > >I am not that sure that I could see the leading move even after few minutes. Not >all the time those "easy moves" is very easy to find. I expected more some >mistake in a second position that real mate. > >>I don't remeber my time, but Qh6+!! was my first inclination, then I worked >>it out in a matter of several minutes. >> >>I then gave it to my Mach III Master in Jan. 1990, it took it 2 min. 45 seconds >>if I'm not mistaken. > >What is the Mach III Master? Some kind of stand alone electronic chess game? >If it is what I think, the last time when I had something similar was around 13 >years ago. Then it was Radio Shack made gadget. > > >>Better time than me!;-) > >Try to put from time to time here some position from real life, like the last >forced mate. It is fun to solve them. > >Leonid. > >>Terry Yes it was a stand alone unit, made by Fidelity Electronics. Dan Spracklen was the Key programmer. This was the last programme he made for Fidelity Electronics, the Mach IV Master was the same programme just on faster hardware, a Motorola 68200 32bit at 20 Mgh. while the Mach III was running on a 68000 16bit at 16 Mgh., as Hegner & Glasser (Mephisto) bought them out in the fall of '89. Another thing many might not know was the Mach III programme was written in 8bit code and adapted to 16:) Those were the days! I should look at some of my old games I use to play with this machine and my old Novag Super Forte "C" running on a 6502 8bit at 6 Mgh. (Boy that's Slow!) and see if I can dig up some old mating attacks, some which were long. I was better I think in those days!;-) Terry
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.