Author: Günther Simon
Date: 12:34:44 12/02/05
Go up one level in this thread
On December 02, 2005 at 14:57:22, chandler yergin wrote: >On December 02, 2005 at 14:49:23, Uri Blass wrote: > >>On December 02, 2005 at 14:32:03, F. Huber wrote: >> >>>On December 02, 2005 at 14:22:54, chandler yergin wrote: >>> >>>>On December 02, 2005 at 12:21:55, F. Huber wrote: >>>> >>>>>On December 02, 2005 at 11:12:54, chandler yergin wrote: >>>>> >>>>>>On December 02, 2005 at 10:42:16, Rob Basham wrote: >>>>>> >>>>>>>[D]3Q4/bp3pp1/6k1/8/7R/6p1/B2p1PP1/q1rn2K1 w - - 0 1 >>>>>>> >>>>>>>This is the recent neat Mate in 19 problem...after 5 moves are played... >>>>>>> >>>>>>>1. Qd3+ >>>>>>> >>>>>>>CM-9000 ann. mate in 14 in 39 seconds.....SKR >>>>>>> >>>>>>>P3_850 >>>>>>> >>>>>>>Rob >>>>>> >>>>>>Try Mate in 11 in 00:02 >>>>>>New game >>>>>>[D]3Q4/bp3pp1/6k1/8/7R/6p1/B2p1PP1/q1rn2K1 w - - 0 1 >>>>>> >>>>>>Analysis by Shredder 8: >>>>>> >>>>>>1.Qxd2 Nxf2+ 2.Qe1 >>>>>> -+ (-6.24) Depth: 1/5 00:00:00 >>>>>>1.Qxd2 Nxf2+ 2.Qd1 Nxd1+ 3.Rd4 >>>>>> -+ (-16.91) Depth: 1/5 00:00:00 >>>>>>1.Qxd2 Nxf2+ 2.Qd1 Nxd1+ 3.Rd4 >>>>>> -+ (-16.91) Depth: 1/5 00:00:00 >>>>>>1.Qh8 gxf2+ 2.Kf1 Qxa2 >>>>>> -+ (-12.13) Depth: 1/5 00:00:00 >>>>>>1.Qh8 Qxa2 >>>>>> -+ (-10.84) Depth: 1/5 00:00:00 >>>>>>1.Qh8 gxf2+ 2.Kf1 Qxa2 >>>>>> -+ (-10.77) Depth: 1/6 00:00:00 >>>>>>1.Qd5 Nxf2# >>>>>> -+ (-8.59) Depth: 1/6 00:00:00 >>>>>>1.Qd5 Nxf2# >>>>>> -+ (-8.59) Depth: 1/6 00:00:00 >>>>>>1.Bc4 Nxf2+ >>>>>> -+ (-8.46) Depth: 1/7 00:00:00 >>>>>>1.Bc4 Nxf2+ 2.Bf1 >>>>>> -+ (-8.46) Depth: 1/7 00:00:00 >>>>>>1.Bd5 Nxf2# >>>>>> -+ (-8.41) Depth: 1/7 00:00:00 >>>>>>1.Bd5 Nxf2# >>>>>> -+ (-8.41) Depth: 1/7 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 1/7 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 1/7 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 2/2 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 3/3 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 4/4 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 5/5 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 6/6 00:00:00 >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 7/7 00:00:00 1kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 8/8 00:00:00 2kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 9/9 00:00:00 4kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 10/10 00:00:00 6kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 11/11 00:00:00 14kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 12/12 00:00:00 26kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 13/13 00:00:00 41kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 14/14 00:00:00 75kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 15/15 00:00:01 153kN >>>>>>1.Qd3+ f5 2.Qxg3+ >>>>>> +- (#14) Depth: 16/16 00:00:01 247kN >>>>>>1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Qxd2 >>>>>> +- (#11) Depth: 17/18 00:00:02 596kN >>>>>> >>>>>>(, MyTown 02.12.2005) >>>>> >>>>>And once again a wrong mate announcement by Shredder 8 - if I were you I would >>>>>throw away this engine! >>>>> >>>>>BTW, how should a #19 become a #11 after 5 moves??? >>>>> >>>>>Franz. >>>> >>>>Easy.. it sees it. It may not be the best line and the evaluation may change >>>>after deeper search! >>>>If you like, I'll let it run longer. But how did you like the speed at which >>>>it found Mate in 14? >>>>Hmmm? >>> >>> >>>Well, the time 00:00:00 wouldn´t be that bad, but what is it worth, if you >>>can´t trust Shredder´s mate announcements at all? :-( >>> >>>And please do NOT let it run longer, otherwise Shredder eventually might find >>>even a #5 ... ;-) >>> >>>Franz. >> >>I can add that I believe that the speed is thanks to learning >>Shredder9 without previous learning cannot find it so fast and the fact that >>shredder found mate in 14 at depth 1 strongly suggest that it learned from >>previous search. > Perhaps you are not doing something correctly? > >Your suggestion isn't worth consideration. >Every time a move is made the hash is overwritten and it loses the previous >information. I posted the Fen and pasted the analysis. > He doesn't only speak about hash, which is _not_ overwritten BTW if you don't restart the engine, but also about Shredders position learning stored to HD... sigh... Guenther
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