Author: Uri Blass
Date: 23:42:38 09/09/01
Go up one level in this thread
On September 09, 2001 at 18:23:08, Günter Müller wrote: >On September 09, 2001 at 17:42:03, Günter Müller wrote: > >>On September 09, 2001 at 13:50:25, Torstein Hall wrote: >> >>>On September 09, 2001 at 13:10:25, Uri Blass wrote: >>> >>>>On September 09, 2001 at 12:26:35, Torstein Hall wrote: >>>> >>>>>After the following moves we reach this position: >>>>> >>>>> >>>>>Kasparov,G (2851) - Shirov,A (2751) [C11] >>>>>Fujitsu-Siemens Giants Frankfurt GER (3), 23.06.2000 >>>>>[Fritz 6 (180s)] >>>>> >>>>>C11: French: Classical System: 4 e5 and 4 Bg5 dxe4 >>>>> 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Nbd7 6.Nf3 Be7 7.Nxf6+ Bxf6 8.h4 >>>>>0-0 9.Bd3 c5 10.Qe2 cxd4 11.Qe4 g6 12.0-0-0 Qa5 13.Bxf6 Nxf6 14.Qxd4 Nh5 15.a3 >>>>>Rd8 16.Qe3 Bd7 17.g4 Nf6 18.Qf4 Nd5 19.Qh6 Nf6 20.Ng5 Bc6 21.Bxg6 hxg6 22.Nxe6 >>>>>fxe6 23.Qxg6+ Kh8 24.Qxf6+ Kh7 25.Rhe1 Rxd1+ 26.Rxd1 Qc5 27.g5+- Rf8 28.Qh6+ Kg8 >>>>>29.Qxe6+ Kg7 30.Qh6+ Kg8 31.Qg6+ Kh8 32.Qh6+ Kg8 >>>>> >>>>>[D]5rk1/pp6/2b4Q/2q3P1/7P/P7/1PP2P2/2KR4 w - - 0 33 >>>>> >>>>>When Fritz has the gamescore it wants to play 33.Rd6 whish probably wins, but >>>>>takes a lot longer. If the game score is not given to Fritz it want to play >>>>>33.Qe6+ like Kasparov did. This must be a repetition bug?! >> >>>Torstein >> >>Hi >>This is bug.Only two time repetition we have hat. >>When Fritz has the gamescore it wants to play 33.Rd6 and you give 33.Qe6+ by >>manuell input the answer is a mistake! >> >>5rk1/pp6/2b1Q3/2q3P1/7P/P7/1PP2P2/2KR4 b - - 0 1 >> >>Analysis by Fritz 6: >> >>1. = (0.00): 33...Kg7 ??? >>2. +- (1.84): 33...Kh8 34.Kb1 Ba4 35.Rd2 Qc6 >>3. +- (7.91): 33...Kh7 34.Rd6 Be8 35.g6+ Kg7 36.Qe7+ Bf7 37.Qf6+ Kg8 38.gxf7+ >>4. +- (9.56): 33...Rf7 34.Rd8+ Qf8 35.g6 Kg7 36.Rxf8 Rxf8 37.Qe7+ >> >>The next move is normal >> >>5r2/pp4k1/2b1Q3/2q3P1/7P/P7/1PP2P2/2KR4 w - - 0 1 >> >>Analysis by Fritz 6: >> >>34.Rd6 Rxf2 35.Qe7+ Rf7 36.Rg6+ Kxg6 37.Qxc5 Rf4 38.Qd6+ Kf5 >> +- (4.59) Depth: 1/6 00:00:00 >> +- (4.72) Depth: 12/30 00:00:05 3007kN >> >>(, home 09.09.2001) >>MfG >>Günter >The bug is in Chessbase-GUI with Fritz Shredder Hiarcs Nimzo Tiger , but not >with Crafty 18.10. >MfG >Günter It is not a bug It is a design decision It is easy to correct the problem by deciding that repetition of previous position in the game is not a draw unless they happened twice but in this case Deep Fritz's level in comp-comp games is probably going to be demaged because repetition in comp-comp games is usually not the best move if the position is not a draw and Fritz is going to waste time about more unimportant lines. Uri
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