Arimaa Forum - Print Page


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

        Arimaa >> Bot Development >> Hashing step numbers
        
(Message started by: aaaa on Sep 10^th, 2008, 4:03pm)

Title: Hashing step numbers
Post by aaaa on Sep 10^th, 2008, 4:03pm

Shouldn't apart from the side to move also the current step number be part of the Zobrist hashing key?

Title: Re: Hashing step numbers
Post by jdb on Sep 10^th, 2008, 4:14pm

yes

Title: Re: Hashing step numbers
Post by Janzert on Sep 10^th, 2008, 6:06pm

Along with pieces and side to move I include steps left, if it's in the middle of a push and the last piece to move. If pushes and pulls are done as one operation, instead of two separate steps, the last two aren't needed.

Janzert

Title: Re: Hashing step numbers
Post by fotland on Dec 14^th, 2008, 11:59pm

Bomb includes the step number in the key.

on 09/10/08 at 16:03:31, aaaa wrote:

Shouldn't apart from the side to move also the current step number be part of the Zobrist hashing key?

Title: Re: Hashing step numbers
Post by IdahoEv on Jan 20^th, 2009, 5:47pm

Also relevant to include, possibly, would be how many times this position has occurred in history leading up to the current state, for purposes of evaluating repetition.