Author: chandler yergin
Date: 11:57:22 12/02/05
Go up one level in this thread
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. > >New game, >[D]3Q4/bp3pp1/6k1/8/7R/6p1/B2p1PP1/q1rn2K1 w - - 0 1 > >Analysis by Shredder 9 UCI: > >1.Qxd2 > -+ (-6.14) Depth: 1/5 00:00:02 >1.Qxd2 > -+ (-5.99) Depth: 1/5 00:00:02 >1.Qd6+ > -+ (-5.66) Depth: 1/7 00:00:02 >1.Qd6+ > -+ (-4.89) Depth: 1/7 00:00:02 >1.Qd6+ > -+ (-4.89) Depth: 1/7 00:00:02 >1.Qd6+ Qf6 2.Qxg3+ Qg5 > -+ (-5.04) Depth: 2/9 00:00:02 >1.Rg4+ > -+ (-4.69) Depth: 2/9 00:00:02 >1.Rg4+ > -+ (-2.35) Depth: 2/10 00:00:02 >1.Rg4+ Kh7 2.Rh4+ Kg6 > = (0.02) Depth: 2/10 00:00:02 >1.Rg4+ Kh7 2.Qh4+ Kg8 3.Qd8+ > = (0.03) Depth: 3/17 00:00:02 >1.Rg4+ Kh7 2.Bb1+ Qxb1 3.Qh4+ Kg8 4.Qd8+ Kh7 5.Qh4+ Kg8 6.Qd8+ Kh7 > = (0.04) Depth: 4/24 00:00:02 >1.Qd3+ > = (0.06) Depth: 4/26 00:00:02 >1.Qd3+ f5 2.Rg4+ Kh6 3.Qd6+ Qf6 4.Rh4+ Kg6 > = (0.06) Depth: 4/26 00:00:02 >1.Qd6+ > = (0.07) Depth: 4/26 00:00:02 >1.Qd6+ > ² (0.68) Depth: 4/26 00:00:03 >1.Qd6+ Qf6 2.Qd3+ Qf5 3.Rg4+ Kh6 4.Qxf5 > +- (2.01) Depth: 4/26 00:00:03 >1.Qd6+ Qf6 2.Qxg3+ Qg5 3.Qd6+ Qf6 4.Qd3+ Qf5 5.Rg4+ Kf6 > +- (1.96) Depth: 5/26 00:00:03 >1.Qd6+ Qf6 > +- (1.71) Depth: 6/26 00:00:03 32kN >1.Qd6+ Qf6 > ± (1.21) Depth: 6/26 00:00:03 36kN >1.Qd6+ Qf6 2.Qxg3+ Qg5 3.Qd6+ Qf6 4.Qd3+ Qf5 5.Rg4+ Kh6 6.Rh4+ Kg6 7.Rg4+ Kh6 >8.Rh4+ Kg6 > = (0.06) Depth: 6/26 00:00:03 44kN >1.Qd6+ Qf6 2.Qxg3+ Qg5 3.Qd6+ Qf6 4.Qd3+ Qf5 5.Rg4+ Kh6 6.Rh4+ Kg6 7.Rg4+ Kh6 >8.Rh4+ Kg6 > = (0.06) Depth: 7/29 00:00:03 97kN >1.Qd6+ Qf6 2.Qxg3+ Qg5 3.Qd6+ Qf6 4.Qd3+ Qf5 5.Rg4+ Kh6 6.Rh4+ Kg6 7.Rg4+ Kh6 >8.Rh4+ Kg6 > = (0.06) Depth: 8/32 00:00:03 209kN >1.Qd6+ Qf6 2.Qxg3+ Qg5 3.Qd6+ Qf6 4.Qd3+ Qf5 5.Rg4+ Kh6 6.Rh4+ Kg6 7.Rg4+ Kh6 >8.Rh4+ Kg6 > = (0.06) Depth: 9/34 00:00:05 608kN >1.Bxf7+ > = (0.07) Depth: 9/34 00:00:05 807kN >1.Bxf7+ Kxf7 2.Qd5+ Kf8 3.Rh8+ Ke7 4.Qd8+ Kf7 5.Rf8+ Kg6 6.Qd3+ Kh6 7.Rh8+ Kg5 >8.Qd5+ Kg6 9.Qd3+ > = (0.07) Depth: 9/34 00:00:05 875kN >1.Bxf7+ Kxf7 2.Qd5+ Kf8 3.Rh8+ Ke7 4.Qd8+ Kf7 5.Rf8+ Kg6 6.Qd3+ Kh6 7.Rh8+ Kg5 >8.Qd5+ Kg6 9.Qd3+ Kf7 10.Qd7+ Kg6 11.Qd3+ Kf7 12.Qd7+ Kg6 13.Qd3+ > = (0.06) Depth: 10/37 00:00:06 1734kN >1.Bxf7+ Kxf7 2.Qd5+ Kf8 3.Rh8+ Ke7 4.Qd8+ Kf7 5.Rf8+ Kg6 6.Qd3+ Kh6 7.Rh8+ Kg5 >8.Qd5+ Kg6 9.Qd3+ Kf7 > = (0.08) Depth: 11/38 00:00:10 4240kN >1.Bxf7+ Kxf7 2.Qd5+ Kf8 3.Rh8+ Ke7 4.Qd8+ Ke6 5.Re8+ Kf5 6.Qd3+ Kg5 7.Qxg3+ Kf5 >8.Qf3+ Kg5 > = (0.08) Depth: 12/42 00:00:18 8924kN >1.Bxf7+ Kxf7 2.Qd5+ Kf8 3.Rh8+ Ke7 4.Qd8+ Ke6 5.Re8+ Kf5 6.Qd3+ Kg5 7.Qxg3+ Kf5 >8.Qf3+ Kg5 9.Qd5+ Kh6 10.Rh8+ Kg6 11.Qd3+ Kf7 12.Qd7+ Kf6 13.Qd6+ > = (0.09) Depth: 13/46 00:00:37 20385kN >1.Bxf7+ Kxf7 2.Qd5+ Kf8 3.Rh8+ Ke7 4.Qd8+ Ke6 5.Re8+ Kf5 6.Qd3+ Kg5 7.Qxg3+ Kf5 >8.Qf3+ Kg5 9.Qd5+ Kh6 10.Rh8+ Kg6 11.Qd3+ Kf6 > = (0.09) Depth: 14/48 00:01:13 42288kN >1.Qd3+ > = (0.12) Depth: 14/48 00:01:18 45043kN >1.Qd3+ > +- (#150) Depth: 14/48 00:01:18 45044kN >1.Qd3+ f5 > +- (#150) Depth: 14/48 00:01:18 45052kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 15/48 00:01:21 47115kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 16/48 00:01:26 49996kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 17/48 00:01:28 50688kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 18/48 00:01:30 52023kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 19/48 00:01:32 52839kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 20/48 00:01:34 54228kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 21/48 00:01:36 56000kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 22/48 00:01:40 58391kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 23/48 00:01:46 62343kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 24/48 00:01:53 67354kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 25/48 00:02:03 74171kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 26/48 00:02:15 82810kN >1.Qd3+ f5 2.Qxg3+ Kf6 3.Qd6+ Kg5 4.Rh5+ Kxh5 5.Bf7+ Kg5 6.Qg3+ Kf6 7.Qg6+ Ke5 >8.Qe6+ Kf4 9.g3+ Kg4 10.Qg6+ Kf3 11.Qxf5+ Ke2 12.Qb5+ Kf3 13.Qh5+ Ke4 14.Qd5# > +- (#14) Depth: 27/48 00:02:34 96061kN > >(, 02.12.2005)
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