Author: Will Singleton
Date: 17:02:16 11/08/05
Go up one level in this thread
On November 08, 2005 at 12:06:39, Bernhard Bauer wrote: >On November 08, 2005 at 11:11:04, Will Singleton wrote: > >>On November 08, 2005 at 02:48:44, Bernhard Bauer wrote: >> >>>On November 08, 2005 at 01:21:03, Will Singleton wrote: >>> >>>>On November 07, 2005 at 17:14:45, Rob Basham wrote: >>>> >>>>>[D]6r1/p1pq1p1p/1p1p1Qnk/3PrR2/2n1P1PP/P1P5/4R3/6K1 w - - 0 1 >>>>> >>>>>Well, it is easy for Fidelity Mach 3.....:-) >>>>> >>>>>Mach 3 at level one finds all the correct moves to this mate in 11....! >>>>> >>>>>Beginning with....Rh5+ >>>>> >>>>>How does your machine do on this one...? >>>>> >>>>>Rob >>>> >>>>Oddly, Crafty 20.0 bh cannot solve this. Bug? does it happen in the latest >>>>crafty? >>> >>> >>> >>>Hi, >>>on my system Crafty v20.0 BH finds mate in 11 easily >>>same for v20.1 >>> >>> 8-> 0.63 0.01 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+ >>> Kh5 4. Rh2+ Kg4 5. Rg2+ Kh4 6. Qf2+ >>> Kh5 7. Qe2+ Kh4 8. Qf2+ >>> 9 0.66 +1 1. Rh5+!! >>> 9 0.66 +3 1. Rh5+!! >>> 9 0.67 +M 1. Rh5+!! >>> 9 0.74 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+ >>> Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+ >>> Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+ >>> Ke5 10. Re2+ Ne3 11. Rxe3# >>> 9-> 0.82 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+ >>> Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+ >>> Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+ >>> Ke5 10. Re2+ Ne3 11. Rxe3# >>> >>> >>> >>>Kind regards >>>Bernhard >> >>So, of the four results for crafty posted here, two cannot find it, one takes a >>long time, and yours finds < 1 sec. I wonder what's going on? >> >>My setup is a p4 2.8ghz, now using crafty 20.1 bh, the rc file sets the hash to >>96mb, and the phash to 6mb. Winboard 4.26. >> >>Will > >Ok Will, >I ran the position again for 10 sec. Here is the full output. >As you can see I changed the extensions somewhat in crafty.rc. >Kind regards >Bernhard > > >one-reply extension..................0.75 >in-check extension...................0.60 >recapture extension..................0.75 >mate thrt extension..................0.50 >5 piece tablebase files found >13980kb of RAM used for TB indices and decompression tables >EGTB cache memory = 8M bytes. > > Ok, I figured out how to set the above extension values (aside: examples would be nice in the docs!), and I have duplicated your results. I guess the next step would be for someone to run a couple of test suites with your extensions vs the default, perhaps some games as well. Will
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