Author: Joachim Rang
Date: 11:19:20 11/29/04
Go up one level in this thread
On November 29, 2004 at 11:26:57, Uri Blass wrote: >On November 29, 2004 at 10:56:13, Joachim Rang wrote: > >>On November 29, 2004 at 08:20:38, Franz Hagra wrote: >> >>>see http://f23.parsimony.net/forum50826/messages/113535.htm >>> >>>r1b1n2r/1p2q3/1Qp1npk1/4p1p1/P1B1P3/2P1BNP1/1P3PK1/R3R3 b - - 0 22 >>> >>>best move is not Nf4 - better to play first Nd6 and then Nf4 >>> >>>This is a main problem test positions - there is always the possibility that the >>>solution move must not be played imidiatly and in this case with nowadays >>>testsuits and GUI's its not possible to test the fact that the engine is >>>"understandig" the position and here motives! >>> >>>eg: an engine finding Nf4 and not Nd6 and than Nf4 would have better test >>>results = the engine seeing less earns more points! >>> >>>Hagra >> >>Thanks Hagra for your confidence in my hurried analysis. Nvertheless it is not >>yet proven, that Nd6 is better, perhaps both moves are equal. It's a very >>complicated and unclear position. I would appreciate any analysis regarding this >>position. >> >>But I thank you for pointing out the quality of the WM-Test, where in the first >>50 Positions only one position was found to be unclear. I too think this is a >>pretty good percentage for a testsuite. >> >>regards Joachim > >1 position out of 50 that was proved to be unclear does not prove that the rest >are clear. > >I do not know if people looked at the rest of the positions to decide if they >are clear or not clear. > >I remember that in the past I looked at part of the problems and was not >convinced that the solutions are correct. > >I was not convinced also about the opposite but as far as I remember I could not >teach yace that the solutions are correct in a short time by going forward and >backward. > >Uri It would be interesting if you could find the positions in question. regards Joachim
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