Author: Sune Fischer
Date: 15:18:11 01/12/04
Go up one level in this thread
On January 12, 2004 at 17:47:07, Robert Hyatt wrote: >On January 12, 2004 at 17:34:52, Uri Blass wrote: > >>I do not see when it happens in crafty and note that it is not only a question >>of speed when it is not clear what is faster and if I understand correctly >>crafty may be wrong when a sequence of captures that is finished in trading >>kings happens and it may happen in the endgames. >> >>[D]8/5r2/5k2/3R1p2/5K2/8/8/8 w - - 0 1 >> >>Rxf5+ is a good capture but based on SEE that let trading kings it can be >>pruned. >> >>Uri > >No. It is not very frequent and doing the test will burn more time than >avoiding the test saves, since the occurrence is so tiny. I simply ignore >it totally... It might be worth adding it in, just use the simple rule that the king cannot expose an xray attacker. I assume you already use that rule for knights so just add the king, it will probably be even be faster to save the scan (or attack lookup or whatever..). -S.
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