Author: Uri Blass
Date: 10:06:24 09/06/04
Go up one level in this thread
On September 06, 2004 at 12:17:48, Reinhard Scharnagl wrote: >On September 06, 2004 at 12:03:44, Uri Blass wrote: > >>On September 06, 2004 at 11:45:29, Reinhard Scharnagl wrote: >> >>>Uri, >>> >>>I have made a little additional test (without mate detecting): >>> >>>FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1 >>> >>> +-*--b--c--d--*--f--g--*-+ MS Visual Studio C++ Version 13.10 >>>8 |[r][n][b][q][k][b][n][r]| >>>7 |[p][p][p][p][p][p][p][p]| Perft Testseries >>>6 | ::: ::: ::: :::| >>>5 |::: ::: ::: ::: | (without caching) >>>4 | ::: ::: ::: :::| >>>3 |::: ::: ::: ::: | Test #: 00 >>>2 |<P><P><P><P><P><P><P><P>| >>>1 |<R><N><B><Q><K><B><N><R>| Break Time 75.0 Sec. >>>=>+-*--b--c--d--*--f--g--*-+ >>> >>>Ply Nodes all (x) (e.p.) all (+) (#) Promot. Castl. Sec. >>>------------------------------------------------------------------------------- >>>1 20 0 0 0 0 0 0 0 >>>2 400 0 0 0 0 0 0 0 >>>3 8902 34 0 12 0 0 0 0 >>>4 197281 1576 0 469 0 0 0 0 >>>5 4865609 82719 258 27351 0 0 0 0 >>>6 119060324 2812008 5248 809099 0 0 0 6 >>>7 3195901860 108329926 319617 33103848 0 0 883453 150 >>>------------------------------------------------------------------------------- >>> >>>It seems to be about 10% faster without checking for mates. >>> >>>Those 10% seem to be the prize if one wants to have also that information. >>> >>>Regards, Reinhard. > >>Thanks for this information >>What is the prize for detecting checks? >> >>I have a legal move generator but I detect checks today only during make move >>and not during move generation. >> >>Uri > >Hi Uri, > >The detecting of checks is so essentially integrated within my move generation, >that it hardly could be switched off without rewriting the whole approach. Thus >I cannot provide you with that requested value, sorry. > >But have a look at following statistics in calculating secure fields the king >would be able to move on: [http://www.chessbox.de/Down/CRC_Test_01.txt] > >Reinhard. I do not understand the meaning of the statistics in that link. Uri Uri
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