Author: Thomas Mayer
Date: 08:19:25 11/06/01
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Hi Dieter, >>If you find that the present position (at the root) is a mate in N, but after >>you try each legal move you can't find a TB score of mate in N-1, then you >>_must_ have a missing TB. Just turn the tablebases off _completely_ as the >>promotion should be findable by normal search. > > You don't need to turn them off completely. It is enough, to not probe the > number of pieces currently on the board. So, in a 5-men situation, probing > 4-men tables will not yield in any problems. that's exactly what I am doing. If root position is in EGTBs and a 1 ply search does not give back a shorter distance to mate, the EGTBs are turned off for root positions. If there is a capture or another promotion, EGTBs are turned on again for that position in the tree... Greets, Thomas
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