Author: blass uri
Date: 12:45:11 03/28/00
Go up one level in this thread
On March 28, 2000 at 15:36:29, Robert Hyatt wrote: >On March 28, 2000 at 05:14:56, blass uri wrote: > >>On March 27, 2000 at 23:08:13, Robert Hyatt wrote: >> >>>On March 27, 2000 at 21:27:31, Dann Corbit wrote: >>> >>>>On March 27, 2000 at 21:17:00, Robert Hyatt wrote: >>>>[snip] >>>>>This is caused by the bishop 'leaving'. It found a way to sac the bishop, >>>>>and since you don't have even simple databases like kpk, it won't realize that >>>>>the resulting ending is a dead draw... >>>>> >>>>>I don't get that odd behavior at all here, with databases turned on... >>>>That's odd. I have the 3&4 piece tablebase files installed, and crafty reports >>>>that it finds them... >>>> >>>>Here is the startup for that position from the log file: >>>>pondering enabled. >>>>EGTB cache memory = 6M bytes. >>>>hash table memory = 24M bytes. >>>>pawn hash table memory = 8M bytes. >>>>EGTB access enabled >>>>using tbpath=e:/crafty/release/tb,F:/KBP >>>>4 piece tablebase files found >>>>1302kb of RAM used for TB indices and decompression tables >>>>search nodes set to 100000000. >>>>PFGA: EPD record: 1 >>>>end-game phase >>>> clearing hash tables >>>> time surplus 0.00 time limit 16:39 (16:39) >>> >>> >>>Watch the PV when the score is funny. It probably finds a way to force black >>>to take the B, while keeping 2 or 3 pawns... most likely 3 pawns... which >>>means that if you don't have all the 5 piece endings, that will look like a >>>winning position for white... >> >>I looked at the pv posted by dan corbit and I only found sacrifices of pawns and >>not one sacrifice of a bishop. >> >>Uri > > >Look at the last PV. Bishop is getting taken on c7. Leaving a k+rookpawn vs >king. The bishop was taken at c7 in the pv that was posted by Kai Skibbe and not in the pv that was posted by dan corbit in reply to Kai Skibbe Uri
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