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Arimaa >> General Discussion >> browni3141 Puzzle #1
(Message started by: browni3141 on Aug 21st, 2014, 2:03pm)

Title: browni3141 Puzzle #1
Post by browni3141 on Aug 21st, 2014, 2:03pm
Gold to play and win in five:
http://arimaa.com/arimaa/notconv/old/boardimg.php?orient=n&size=300&imgtype=jpeg&ranks=6D/h6r/RC2r1dR/3c2dR///R/

1g Ra2 Ra6 Cb6 Dg8 Rh5 Rh6
1s ha7 cd5 re6 dg5 dg6 rh7
http://arimaa.com/arimaa/games/planGame.cgi

Post the main line as your solution, not just the first move, and try to use some method to obfuscate to prevent spoiling.

The puzzle is not intended to be very difficult, but I don't know. I'll call it a medium.

Title: Re: browni3141 Puzzle #1
Post by Fritzlein on Aug 21st, 2014, 6:28pm
Highlight below for solution

2g Dg8s Dg7w rh7w Rh6n
2s dg6e dh6w Rh7s rg7e
3g Ra2n Ra3n Ra4n Cb6s
3s Ra6e ha7s Rb6e Rc6x ha6e
4g Df7e Dg7w rh7w Rh6n
4s dg6e dh6w Rh7s rg7e
5g Df7e Dg7w rh7w Rh6n
5s dg6e re6s re5s re4s
6g rg7n Df7e Rh7n

Thanks for the puzzle!

Title: Re: browni3141 Puzzle #1
Post by browni3141 on Aug 21st, 2014, 8:19pm
Fritzlein's post contains the correct solution. All gold moves should be uniquely optimal save the goaling move.

Title: Re: browni3141 Puzzle #1
Post by TheSingularityIsNow on Sep 18th, 2014, 5:03am
My idea:



1g 1g Ra2 Ra6 Cb6 Dg8 Rh5 Rh6
1s 1s ha7 cd5 re6 dg5 dg6 rh7
2g Dg8s Dg7w rh7w Rh6n
2s dg6e dh6w Rh7s rg7e
3g Df7e Dg7w rh7w Rh6n
3s dg6e dh6w Rh7s rg7e
4g Df7e Dg7w rh7w Rh6n
4s dg6e dh6w Rh7s rg7e
5g

For me Silver is doomed to lode because of the repetition rule.


Title: Re: browni3141 Puzzle #1
Post by TheSingularityIsNow on Sep 18th, 2014, 5:11am
I take back my solution!!! It's gold who loses if I do that.

I made the error to think the repetition rules refers to the list of moves not position

Title: Re: browni3141 Puzzle #1
Post by clyring on Sep 22nd, 2014, 7:08pm
Select to see: Silver is forbidden from so doing by the repetition rule because the resulting position had already occurred twice with Gold to move: After 3s and after 4s.

EDIT: Did you really need to remove your post?

Title: Re: browni3141 Puzzle #1
Post by TheSingularityIsNow on Sep 22nd, 2014, 7:12pm
Yes, I know now. Thanks clyring and browni !



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