Author: chandler yergin
Date: 11:35:02 12/02/05
Go up one level in this thread
On December 02, 2005 at 14:27:36, Rob Basham 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? > >OK.....you win......that's pretty fast! >But how did a mate in 14 become a "mate in 11"...? It doesn't of course! Because it finds one line leading to Mate in 11, doesn't mean it is the best line, & with each Ply search the PV changes. It is Mate in 14. OK? Nothing wrong with the Search function. The Engine does what it's supposed to do. > >Something wrong somewhere...me thinks....:-) > >Rob
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