Author: Vincent Lejeune
Date: 11:31:36 08/31/04
Go up one level in this thread
On August 31, 2004 at 08:54:10, Richard Pijl wrote:
>On August 31, 2004 at 08:15:42, Kolss wrote:
>
>>On August 31, 2004 at 06:52:10, Vasik Rajlich wrote:
>>
>>>On August 30, 2004 at 19:44:50, Eugene Nalimov wrote:
>>>
>>>>On August 30, 2004 at 14:03:49, Dan Honeycutt wrote:
>>>>
>>>>>In spite of Dr. Hyatt's admonishment that this was a loser in Crafty, I'm bent
>>>>>on trying it. Since I do legal move generation I can do the pins for half price
>>>>>- I either have or can use the pin data for one side in conjunction with
>>>>>generating moves. I just finished the routine. My NPS dropped by just over 4%
>>>>>on bench test psitions. I've just started testing an hope to have some
>>>>>indication if pin detection is a win, lose or draw in a few days.
>>>>>
>>>>>One aside - the pin detection is not always more accurate (or mine isn't). In
>>>>>the following position for the move Nxg5 the no-pin SEE correctly returns +1
>>>>>where the pin-detection SEE comes back with -2.
>>>>>
>>>>>[D] 7k/4q3/8/6p1/4N3/5N2/8/4K3 w - -
>>>>
>>>>
>>>>White is lost in 24 :-)
>>>>
>>>>Thanks,
>>>>Eugene
>>>
>>>Really? This ending is only lost in exceptional cases - and it's certainly not
>>>obvious that this is one of them.
>>>
>>>Vas
>>
>>Hi Vas,
>>
>>Are you sure? It seems to me that this ending (Q vs. NN) is generally won for
>>the queen. Maybe someone with the TB could check...
>>
>>Best regards - Munjong.
>
>After Nfxg5 only Kg7 wins. Al other moves are drawn.
>Richard.
After Nxg5 EGTB says ("!" = only move to shortest mate) :
1. ... Kg7! 2. Kf2 Kg6! 3. Ke3 Kf5! 4. Kd4 Qe5+! 5. Ke3! Qd5! 6.
Nc3! Qc5+! 7. Kd3! Qd6+! 8. Kc4 Qa6+ 9. Nb5 Qc6+! 10. Kb4! Kf6! 11.
Nh7+ Ke5! 12. Nf8 Qe4+ 13. Kc5 Qf5! 14. Nh7 Qc2+! 15. Kb4! Qb1+ 16.
Kc5! Qc2+! 17. Kb4!
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.