Author: Robert Hyatt
Date: 14:28:49 07/24/99
Go up one level in this thread
On July 24, 1999 at 15:51:14, Terry Presgrove wrote: >Bob..... > I just downloaded the knpk.nbb.. and tried ths on my AMD 450. > Now mind you I specifically chose not to not get the promotional > knpk.nbw.. file. Here is the result. > >white(1): analyze >end-game phase > clearing hash tables > time limit 7.50 (45.00) > s depth time score variation (1) > 6 0.04 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <EGTB> > 6-> 0.05 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <EGTB> > time=0.05 cpu=100% mat=2 n=5147 fh=98% nps=10000 > ext-> checks=200 recaps=0 pawns=0 1rep=0 thrt:0 > predicted=0 nodes=5147 evals=403 > endgame tablebase-> probes done=139 successful=54 >. > time limit 7.50 (45.00) > s depth time score variation (1) > 1 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 1-> 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 2 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 2-> 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 3 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 3-> 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 4 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > 4-> 0.00 Mat23 1. Nd2+ Ke2 2. Nxc4 Kd3 3. Nxa5 <HT> > > The code is for sure working but what I don't understand is how > crafty found mate this fast using only the knpk.nbb.. file?? > TP look at the PV. two pawns are being captured,leaving this in a KNP vs K ending, which you have the table for.. crafty probes deep in the search and finds this...
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