Author: Brian Katz
Date: 18:17:02 12/28/03
Go up one level in this thread
On December 28, 2003 at 20:18:42, Brian Katz wrote: >On December 27, 2003 at 14:11:55, Slater Wold wrote: > >>On December 27, 2003 at 09:09:57, Russell Reagan wrote: >> >>>On December 27, 2003 at 01:08:07, Slater Wold wrote: >>> >>>>On December 27, 2003 at 00:51:11, Mike Byrne wrote: >>>> >>>>> >>>>>[d]8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1 >>>> >>>>P4 2.0Ghz(m): >>>> >>>>New game >>>>8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1 >>>> >>>>Analysis by Deep Fritz 8: >>>> >>>>1...Ra1+! >>>> ± (1.35) Depth: 7/14 00:00:00 19kN >>>>1...Ra1+! >>>> ± (1.07) Depth: 7/14 00:00:00 20kN >>>>1...Ra1+! >>>> ² (0.50) Depth: 7/15 00:00:00 21kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 >>>> = (0.00) Depth: 7/15 00:00:00 23kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 >>>> = (0.00) Depth: 8/11 00:00:00 27kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 >>>> = (0.00) Depth: 9/15 00:00:00 40kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 >>>> = (0.00) Depth: 10/16 00:00:00 63kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 >>>> = (0.00) Depth: 11/17 00:00:00 155kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 >>>> = (0.00) Depth: 12/18 00:00:00 292kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 >>>> = (0.00) Depth: 13/19 00:00:00 538kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 >>>> = (0.00) Depth: 14/21 00:00:01 970kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 >>>> = (0.00) Depth: 15/21 00:00:02 2101kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1 >>>> = (0.00) Depth: 16/23 00:00:04 3913kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1 >>>> = (0.00) Depth: 17/25 00:00:09 7612kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1 >>>> = (0.00) Depth: 18/26 00:00:16 14406kN >>>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1 >>>> = (0.00) Depth: 19/29 00:00:33 29512kN >>>> >>>>(, 27.12.2003) >>> >>>Maybe Deep Fritz 8 is improved after all :) >>> >>>Athlon 2400+ (2GHz) >>> >>>Fritz 8 >>>8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1 >>> >>>Analysis by Fritz 8: >>> >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 >>> = (0.12) Depth: 7/14 00:00:00 14kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 >>> = (0.12) Depth: 8/13 00:00:00 24kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3 >>> = (0.19) Depth: 9/16 00:00:00 44kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3 >>> = (0.19) Depth: 10/15 00:00:00 77kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf3 >>> = (0.12) Depth: 11/17 00:00:00 244kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Bg2 7.Bb3 Bd5 8.Bxd5 >>> = (0.12) Depth: 12/21 00:00:00 465kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Be2 7.Bb3 Bc4 8.Bxc4 >>>Kh6 9.h4 Kg7 >>> = (0.12) Depth: 13/21 00:00:01 1067kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Be2 7.Ba4 Bb5 8.Bc2 >>>Bd3 >>> = (0.12) Depth: 14/23 00:00:02 2054kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Bd1 Kh4 >>> = (0.09) Depth: 15/24 00:00:05 4100kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Bd1 Bf3 >>> = (0.06) Depth: 16/25 00:00:10 7940kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf1 >>> = (0.06) Depth: 17/27 00:00:21 17182kN >>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf1 >>> = (0.00) Depth: 18/28 00:00:37 30919kN >>> >>>However! Using selectivity = 3, Fritz 8 finds it in 1 second. What are the >>>engine parameters for Deep Fritz 8? The parameters for Fritz 8 (default) are: >> >> >>Contempt value 0 >>Selectivity 2 >>Tablebase depth 3 >>Futility pruning check >>Aggressiveness 2 >>Everything else 0 >> >>It is *much* improved. > >This is very odd. >I again set up this position for Fritz 8 (Fritz 8 GUI)AMD Athlon XP 2600+ 1 GIG >DDR SDRAM Hash set at 512. I changed the Selectivity to 3 and Presto, Fritz 8 >immediately found 1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3! to be a DRAW with an >=(0.00)evaluation rather than the =(0.12)and then down to =(0.06)as it did >yesterday. > >What is ODD is that I set the Selectivity back to the Default setting of 2 and >it still evaluated the position as =(0.00) from the very beginning. >I then closed out of Fritz and booted it back up again, and it still evaluates >the position correctly as =(0.00) rather than =(0.12)as it did yesterday. > >Has anyone experienced this flucuation with programs from one day to the next ?? > >Brian I changed the Selectivity setting to 3,4,5 and 6 and still Fritz 8 did not evaluate the position as = (0.00) Brian
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