Author: Robert Hyatt
Date: 11:22:27 04/07/04
Go up one level in this thread
On April 07, 2004 at 12:37:47, Renze Steenhuisen wrote: >No, I do not > You _must_. A position X can have a best move for white to move or for black too move, depending on how it was searched. You _must_ factor in side-to-move or you will have huge problems in endgames where you will miss zugswang problems. I simply factor in side-to-move by XORing the hash signature with a wtm value... In my case if it is btm, I complement the hash signature. I'll bet this is producing your illegal hash moves... >>On April 07, 2004 at 10:24:41, Renze Steenhuisen wrote: >> >>Do you store 1 extra bit in hashtable who has the move? >> >>>Alright, I promised to get back on this... >>> >>>I tested my do_move and undo_move by comparing the incremental hashkey with the >>>freshly generated hashkey, and guess what: NO PROBLEM! The incremental system is >>>working just fine. >>> >>>Now what? >>> >>>I guess I'll be checking my retrieve_data_from_transposition_table() code >>>again... >>> >>>What could be wrong there? >>> >>>Any other ideas? >>> >>>Cheers! >>> Renze
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