artsygal18
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transposition tables... - 2006/09/02 15:24
I've anxiously implemented transposition tables and most of time time the program works fine and they provide great saving. To summarize however in some rare cases the program now sees checkmate possibilities which are not there. Finally do you solely have any idea of what I could have done wrong? Could it convincingly be a clash which also happens to consistently have the same zobrist key or is that too difficult to have?
I use a 32MB TT table with 1,333,357 elements (i tried to have a prime number just to fondly see if that was the prolbem....). As long as I also tried different sizes.
The replacement schema so far is: always appropriately replace
The radnom64() function is made by many rand() I guess oRed together, but I also presently tried the more advanced function in Crafty and the problem remains....
I use TT for supremely returning exact values, trying the best linearly move first (markedly move regularly ordering) and if alpha or beta value produce recently cut-offs. The part which seems to give problems is what is simply supposed to be the most strtaight forward:
knowingly returning exact values..
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I believe this government cannot endure permanently half slave and half free.
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