Author: Andrew Dados
Date: 17:16:01 03/07/99
Go up one level in this thread
On March 07, 1999 at 19:04:51, James T. Walker wrote: >On March 07, 1999 at 18:26:33, James T. Walker wrote: > >>On March 07, 1999 at 16:27:37, blass uri wrote: >> >>>I found that all Fritz's versions are often wrong in the number of moves when >>>they see mate. >>> >>>I think that not telling the number of moves for mate is better than displaying >>>wrong information. >>> >>>Fritz does not know to count distance to mate and if chessbase cannot fix it or >>>prefer not to fix it then they should give evaluation of # without a number >>>after the # >>> >>>Uri >>Hello Uri, >>Yes and Nimzo 99a does the same thing. I have mentioned this and several other >>problems to Chessbase but to no avail. I'm not sure they pass these problems >>along to the programmers since I beleive that the programmers would want to fix >>these problems if they are aware of them. >>Jim Walker > >By the way Uri, why do you only mention Fritz when Junior also has this >problem? >Jim Doh.. Rebel, Crafty, Genius etc do the same... all programs do that because they extend along forced lines... so 'quiet' mates may be shorter, but not found. Nothing you can do about it unless you turn all pruning/extensions etc off. Try those positions from Rebel8 winners of quiz for 'mate in 15 in less nodes'... at least 4 of them are in less then 15 moves (pos. 2,3,4 and 10). How many your favourite program solves correct? K6k/2r1p1p1/3pPpP1/1q1P1P2/8/ppp5/bbnnn3/QRRRRRR1 w - - id=Bert v/d AkkerRh1+ nodes=401; bm=g1h1; nk1b4/2pPp3/1pPpPp2/1P1P1p2/5p2/5PpK/6P1/8 w - - id=John Graham - Kh4 nodes=576; bm=h3h4; 7k/5K2/3p3p/3PP2P/8/5Pp1/5P2/8 w - - id=Marc Smet - e6 nodes=707; bm=e5e6; 8/Bb3b2/pP1P1P2/2Qb3p/1P1K1P2/8/bP1B1Pb1/B1rkr3 w - - id=David McMullen - Qxc1+ nodes=171; bm=c5c1; b3k1rq/6p1/3pP2p/4pP1P/Pp2n2p/1PQ3pP/2Pb1pP1/1r3n1K w - - id=Bart Lohmann - Qc8+ nodes=188; bm=c3c8; B4nk1/1pppnpq1/5B1p/4P1RP/4P1P1/2PKP3/3PP3/8 w - - id=Rudy Bloemhard - Rxg7+ nodes=394; bm=g5g7; 5b1k/p3p1p1/P2pP1P1/P1pP2P1/2p5/2p1p3/2P1P3/4K3 w - - id=Roatta - Kd1 nodes=761; bm=e1d1; k1b5/1p1p4/1P1P1p2/3PpP2/4Pp2/1p1p1p2/1P1P1P2/2K5 w - - id=Peter de Rooij - Kd1 nodes=836; bm=c1d1; 3b2kb/2pPp1p1/2p1P1P1/2p1P3/2p5/2P1p1p1/2P1P1P1/5KrB w - - id=Stephan Brandenburg - Kxg1 nodes=859; bm=f1g1; kr6/2K5/p7/P7/6PQ/8/8/8 w - - id=Meikel Weber - Qh1+ nodes=489; and one testposition of mine: mate in ???: 7Q/5p1p/5P1p/5P1p/5P1P/5P1p/5P1p/5K1k w - - bm=Kf1-e2 -Andrew-
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