Author: Uri Blass
Date: 04:41:44 09/18/01
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On September 18, 2001 at 07:23:42, Ed Schröder wrote: >On September 18, 2001 at 06:26:05, Uri Blass wrote: > >>On September 18, 2001 at 04:38:32, Steve Maughan wrote: >> >>>The much underestimated Ikarus 0.18 does well with 27 / 42 at 10 m / m. Not bad >>>at all! >> >>I believe that the test is not a good test to test tactical ability because I >>see often cases when programs find the move for positional reasons when there is >>almost no difference in the score between the move that the programs find and >>the previous best move. >> >>I do not say that there is no tactics but the tactics is simply too deep in part >>of the cases and programs may find the right move in few seconds when they need >>a long time to find a big difference between the evaluation of the best move and >>the evaluation of the second best move. >> >>I read that Hiarcs is more materialistic than other programs and I also know >>that it is considered to be weak in king sefety's evaluation and it can explain >>the fact that it could not solve a lot of positional problems (from computer's >>point of view) in the test suite. >> >>Uri > > >It depends of course what you want to test. This set is about king safety and >search. In theory everything can be solved by search. If you can search 200 >plies deep there is no need to build chess knowledge into a chess program. >Since it is impossible to search 200 plies you need chess knowledge. That's >why for me this set was a welcome contribution to test Rebel's king satefy as >it offered me new (and good) king safety material. > >There is no final test-set, never will. > >Ed Note that 2 positions when Rebel failed and Deep Fritz also cannot solve them are not about king safety but about evaluating passed pawns. 1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - id Olafsson - Unzicker; bm d6f6; 3r2k1/p6p/b2r2p1/2qPQp2/2P2P2/8/6BP/R4R1K w - - id Panov - Taimanov; bm a1a6; Uri
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