Author: Uri Blass
Date: 05:59:15 04/16/02
Go up one level in this thread
On April 16, 2002 at 08:39:35, Jouni Uski wrote: >On April 16, 2002 at 06:05:19, Uri Blass wrote: > >>On April 16, 2002 at 05:52:55, Michael Vox wrote: >> >>>On April 15, 2002 at 18:44:10, Amir Ban wrote: >>> >>> >>>Hello Amir, >>> >>>I left Fritz 7b over night for eight hours on a 1.2 ghz with 256mg hash. This >>>is the analysis -1.06. Fritz does not find a winning line only an edge for >>>Black. I was hoping my Nalimov tb's would eventually help Fritz pickup the >>>winning line but it did not occur >>> >>> >>>[D}8/8/2kP1n2/4pppp/6P1/B2K1P1P/8/8 b - - 0 1 >>> >>>Analysis by Fritz 7: >>> >>>38...hxg4-- >>>ยต (-1.06) Depth: 25/54 02:23:16 5204420kN, tb=467316 >>>(X, X 16.04.2002) >> >> >>Fritz is a null mover and I doubt if it can find things here. >>I do not know if it disable null move here but I know from experience that there >>are positions that at least an older version(Deep Fritz) can never find the >>right move. >> >>I think that it may be better to use yace because >>I believe that this program does no unsound pruning and verify no zunzwang based >>n search to reduced depth so in theory it can find every tactics if you search >>deep enough. >> >> >>Uri > >If You set selectivity to 0 in Fritz7 engine parameters, it seems to find all >moves, which cause problem by zugzwang! > >Jouni Yes but it does the engine weaker. I do not think that not using null move is the solution but using null move with zunzwang verification. Uri
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