Author: James T. Walker
Date: 06:59:52 11/30/00
Go up one level in this thread
On November 30, 2000 at 05:35:19, Uri Blass wrote: >On November 30, 2000 at 01:50:29, James T. Walker wrote: > >>On November 29, 2000 at 22:21:21, Mike S. wrote: >> >>>On November 29, 2000 at 21:42:50, Joshua Lee wrote: >>> >>>>Any more opinions as to best endgame play? How does Shredder compare? >>> >>>I cannot talk about the most recent program versions, but I used to think that >>>Crafty, Chessmaster (King) and M-Chess Pro are, or were, best in the endgame. >>>But this opinion was built mainly upon results from the following few test >>>positions (tested without! tablebases): >>> >>>8/3Np3/7P/1p3P2/1k6/5K2/1b6/8 w - - bm f6 >>>8/6k1/8/5PK1/4b1B1/7P/8/8 b - - bm Bxf5 >>>3k4/p7/K3BP2/8/7p/8/2P4P/8 w - - bm Kb7 >>>6k1/2R2p1p/5rp1/8/6P1/P2bRB2/1r5P/7K b - - bm Rxf3 >>>8/4p3/1K6/8/2k1P3/6N1/7p/8 w - - bm Ka5 >>>8/5pk1/5pnp/8/4BPP1/4K2P/8/8 b - - bm h5 >>> >>>Maybe some of you want to try out the new programs, or version, with these. >>> >>>Btw. the third one, Kb7, is one of my favorite computer moves I witnessed in a >>>game. Machine style, but very elegant as well in this case (played by WChess >>>1.04). >>> >>>The last one could cause some discussion, but Crafty has "acknowledged" the move >>>h5 by 2 billion nodes (thanks to Dann Corbit). It is a blind bishop position. >>> >>>Regards, >>>M.Scheidl >>> >>> >>>An elegant computer move: >>>[D]3k4/p7/K3BP2/8/7p/8/2P4P/8 w - - bm Kb7 >>>1.Kb7!! © WChess 1.04 >> >>I gave the "elegant computer move" to Chess Tiger 13.0 and it plays Kb7 >>instantly and announces mate in 4? >>Jim > >I do not see mate in 4. > >The shortest mate that I can see for white is 1.Kb7,2.c4,3.c5,4.c6,5.c7,6.c8Q# > >I can see also 1.Kb7 2.f7 3.f8Q# but black has defence against it(Ke7) > >The move kb7 is an elegant human move because it is based on a simple plan and >computers do not plan. >Programs can find it by search but some programs have problem to find Kb7 >My Junior5.9 wants to play c4. > >Uri Hello Uri, Almost any move wins because black is surely lost but Kb7 leads to the shortest mate since it stops the king from escaping with Kc7. I gave the position to Tiger again and it correctly plays Kb7 instantly and announces Mate in 5. This is correct for Tiger since it does not count the current move. Some programs do and some don't. Jim
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