Arimaa Forum - Print Page


    
      
        Arimaa Forum
        (http://arimaa.com/arimaa/forum/cgi/YaBB.cgi)
      

        Arimaa >> General Discussion >> Endgame Study 5, Lessons Learned
        
(Message started by: jdb on Nov 30^th, 2006, 6:27pm)

Title: Endgame Study 5, Lessons Learned
Post by jdb on Nov 30^th, 2006, 6:27pm

Using the tournament ruleset, who wins the following position and in how many moves?

1w Rf2 Cf8
1b dg6 re7

The planning window is located at
http://arimaa.com/arimaa/games/planGame.cgi

Title: Re: Endgame Study 5, Lessons Learned
Post by RonWeasley on Dec 6^th, 2006, 11:34am

I tried for a while, but can't find a way for gold to win. I guess I haven't learned my lesson.

Title: Re: Endgame Study 5, Lessons Learned
Post by jdb on Dec 6^th, 2006, 11:40am

It appears the study's creator hasn't learned his lesson either... :-[

Title: Re: Endgame Study 5, Lessons Learned
Post by chessandgo on Dec 12^th, 2006, 3:50pm

I don't see any way for gold either, so I'd say silver wins ... guess it's wrong :)

I fail to see any other sensible move for gold than :
- Cf8w R to g4 or to e4 where unfreezing the rabbit to e5 seems to win quickly for silver
- push the r to d7 and Rf2e where silver pulls the Cat to f7
-push the r to e8 and Rf2w but silver pushes the Cat on e6
-push the r to e6 or f7 but silver pulls the Cat towards the trap.

So ... what do I miss ?:)

Title: Re: Endgame Study 5, Lessons Learned
Post by jdb on Dec 12^th, 2006, 6:09pm

Yes, silver wins. My apologies, I made a mistake checking a repetition in the position.

The endgame studies are on break until after the deadline for the bot tournament, so I can work on clueless.

The tablebase generator is currently building DCRer on my old computer. Best guess looks like it will be done sometime in the middle of January.

Title: Re: Endgame Study 5, Lessons Learned
Post by Fritzlein on Dec 12^th, 2006, 8:31pm

on 12/12/06 at 18:09:06, jdb wrote:

The tablebase generator is currently building DCRer on my old computer.

Cool, then we'll finally get the answer to this position

on 04/20/05 at 15:55:38, jdb wrote:

1w Ra1 Cd1 Ce1
1b ra8 ed8
2w pass

Which I thought was a draw no matter who moves first, Omar thought was a win for Gold no matter who moves first, and you thought was a win for Silver no matter who moves first. 20 months is not such a long time to wait in suspense.