Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Two knights endgame

Author: Chessfun

Date: 07:56:43 04/01/00

Go up one level in this thread


On April 01, 2000 at 08:18:51, Frederic Friedel wrote:

>Amazingly it never occurred to anyone -- Thompson, Stiller, Nalimov -- to run
>through the ending K+N+N vs K. Everyone assumed it was simply a draw in every
>case. Well, fire up your Nalimov tablebase generator and prepare for a shock! In
>over 10% of all legal positions the attacking side can forced a mate in 31 to 48
>moves. It is difficult to do anything systematically with the tablebase after it
>has been generated (except play against them), but as far as I can tell the
>attacking side can force a win if the defending king is on one of the squares
>a1, b1 or a2 and the attacking king and at least one knight is within the square
>a1-d1-d4-a4. Naturally this can be reflected in all four corners of the board.
>Some  of the mates are wonderfully intricate and involve forcing the king to
>move to a4 (or d1) and back again to a1. John Nunn is studying the ending and
>will provide a better statistical evaluation soon.


I'll stick to the two messages I posted on the subject last week.
In the Oops (again) thread.

It isn't possible.
Thanks.

I honestly felt it kinda pointless....stating unless by mutual consent,
seems I was wrong.
Thanks.








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.