Author: leonid
Date: 14:17:26 09/01/02
Go up one level in this thread
On September 01, 2002 at 07:34:16, Paul wrote: >On August 31, 2002 at 13:26:16, leonid wrote: > >>On August 31, 2002 at 08:15:19, Paul wrote: >> >>>On August 31, 2002 at 06:41:28, leonid wrote: >>> >>>>Hi, >>>> >>>>This position is very easy to solve. At least for black side where mate have >>>>accessible parameters and mate is 10 moves deep. >>>> >>>>[D]3Nqbbk/3NQqRq/3QrRp1/3Pqp2/3Qqn2/2p1Pn2/1r2Pp2/QNKBBQ2 w - - >>>> >>>>Please indicate Your result. >>>> >>>>Thanks, >>>>Leonid. >>> >>>Hi Leonid, >> >>Hi, Paul! >> >>>My Pretz on a P3/1000 says a mate in 12 in 9 secs for White: >> >>Excellent time! Probably You speeded even more Your program. >> >>Mine for whites found also mate in 12. There I don't know shortest mate, since >>for white side my branching was not very glorious. > >I tried Chest after I posted, and after 8219 seconds in the background, on low >priority, it reported 'no mate in 11' ... so 12 it is ... Wait a minute! Did You searched by brute force, or by much deeper selective search? > >>>00:09 WM12 09 Nxf7+ Qxf7 Rxh7+ Kxh7 Rxf7+ Bxf7 Qxf7+ Kh6 Qh1+ Nh5 Qdxf8+ Kg5 >>>Qd8+ Rf6 Qdxf6+ Nxf6 Qxf6+ Qxf6 Qxf6+ Kg4 Qg2+ Kh5 Qgxg6# >>> >>>For Black it's a little shorter and faster: >> >>It could be that our programs were indentical, or close for both colors. Mine, >>on my Celeron 600Mhz and no hash, for white took 13 seconds. For black side it >>took 0.38 sec. > >Well, your black time is 3 times as fast as mine :) Since Your program is not a mate solver it signify that mine could be speeded up. For not specilized program Your did better that mine. >>Did You worked with Your program since I spoke with You last time, or You was >>"out of town" like me? > >I sent you an email ... Had it! Cheers, Leonid. >>Cheers, >>Leonid. >> >>>00:01 BM10 08 Rxb1+ Qxb1 Qxe3+ Bd2 cxd2+ Kc2 Ne1+ Qxe1 fxe1=N+ Kb2 Q5xd4+ Ka2 >>>Qa7+ Ba4 Qxa4+ Qa3 Qaxa3+ Qxa3 Qxa3# > >Groetjes, >Paul
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