Author: Gordon Rattray
Date: 10:31:49 07/30/00
Go up one level in this thread
On July 28, 2000 at 20:21:48, Christophe Theron wrote: >On July 28, 2000 at 08:53:18, Gordon Rattray wrote: > >>Thanks for this input, but unfortunately as you mention, it comes as no great >>surprise. >> >>My problem must be something to do with my PC and not Fritz, so I won't continue >>to waste anyone's time on it. Thanks again however (to all those who gave >>feedback). >> >>I'll have Internet access from my home machine (where I use Fritz) this weekend. >> I'll aim to post a few "clipped analysis" results just to allow people to see >>exactly what I'm seeing. The results are still inconsistent even after a >>reboot. I don't expect people to follow it up anymore as there's little or no >>point. If I ever find out what the subtle cause is, I'll post it here. >> >>Gordon > > > >It could be caused by a RAM problem on your computer. > >These problems can be hard to detect and cause exactly the kind of trouble you >are describing. > >I would advice you to go to shareware.com and download DocMemory. It can detect >this kind of RAM faults. > > > > Christophe Thanks for this. I'll investigate this possibility further. Just for reference, I've included the analysis I said I'd post. For this example, why is a4 choosen in the first, but c4 in the second? I notice that the final scores only differ by 0.06 in this example, but I still expected to see the same analysis?! Gordon -------------------------- First run.... New position 4k3/5ppp/8/8/8/8/PPP5/3K4 w - - 0 1 Analysis by Fritz 6: 1.Ke2 = (0.13) depth: 1/3 00:00:00 1.Ke2 Ke7 = (0.03) depth: 2/4 00:00:00 1.c4 = (0.13) depth: 2/4 00:00:00 1.c4 h5 2.b4 = (0.03) depth: 3/5 00:00:00 1.c4 h5 2.b4 = (0.03) depth: 4/6 00:00:00 1.a4! = (0.06) depth: 4/6 00:00:00 1.a4 h5 2.b4 = (0.03) depth: 5/7 00:00:00 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 6/7 00:00:00 1kN 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 7/10 00:00:00 4kN 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 8/10 00:00:00 9kN 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 9/12 00:00:00 21kN 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 10/13 00:00:00 37kN 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 11/16 00:00:00 68kN 1.a4 h5 2.b4 g5 3.c4 = (0.03) depth: 12/18 00:00:01 127kN 1.a4 h5 2.b4 g5 3.c4 f5 4.Ke2 Kd7 5.a5 h4 = (0.06) depth: 13/19 00:00:02 296kN 1.a4 h5 2.b4 g5 3.c4 f5 4.Ke2 Kd7 5.a5 h4 = (0.03) depth: 14/20 00:00:03 545kN 1.a4 h5 2.b4 g5 3.c4 f5 4.Ke2 Kd7 5.a5 h4 ² (0.28) depth: 15/23 00:00:08 1305kN 1.a4! ² (0.59) depth: 16/28 00:00:15 2431kN 1.a4 h5 2.b4 g5 3.c4 f5 4.a5 Kd7 5.b5 h4 ± (0.75) depth: 16/28 00:00:22 3504kN 1.a4-- ² (0.44) depth: 17/27 00:00:27 4449kN 1.a4 h5 2.b4 g5 3.c4 f5 4.a5 Kd7 5.b5 h4 = (0.06) depth: 17/30 00:00:31 5200kN 1.a4 h5 2.b4 g5 3.c4 f5 4.a5 Kd7 5.b5 h4 = (0.03) depth: 18/30 00:00:49 8165kN 1.a4 h5 2.b4 g5 3.c4 f5 4.a5 Kd7 5.b5 h4 = (-0.03) depth: 19/32 00:01:20 13589kN 1.a4 h5 2.b4 g5 3.c4 f5 4.a5 Kd7 5.b5 h4 = (0.00) depth: 20/35 00:02:08 22210kN 1.a4 h5 2.b4 g5 3.b5 Kd7 4.a5 f5 5.c4 = (0.06) depth: 21/36 00:04:11 44875kN, tb=66 --------------------------------------------------- Now I try to repeat the *same* test, but... New position 4k3/5ppp/8/8/8/8/PPP5/3K4 w - - 0 1 Analysis by Fritz 6: 1.Ke2 = (0.13) depth: 1/3 00:00:00 1.Ke2 Ke7 = (0.03) depth: 2/4 00:00:00 1.Ke2 Ke7 2.Kf3 = (0.00) depth: 3/4 00:00:00 1.c4 = (0.03) depth: 3/4 00:00:00 1.c4 = (0.03) depth: 4/4 00:00:00 1.c4 = (0.03) depth: 5/5 00:00:00 1.c4 = (0.03) depth: 6/6 00:00:00 1.c4 = (0.03) depth: 7/7 00:00:00 2kN 1.c4 = (0.03) depth: 8/8 00:00:00 5kN 1.c4 = (0.03) depth: 9/9 00:00:00 8kN 1.c4 = (0.03) depth: 10/10 00:00:00 15kN 1.c4 = (0.03) depth: 11/11 00:00:00 24kN 1.c4 = (0.03) depth: 12/12 00:00:00 41kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 Kd7 5.a5 h4 = (0.06) depth: 13/18 00:00:01 133kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 Kd7 5.a5 h4 = (0.03) depth: 14/20 00:00:02 346kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 Kd7 5.a5 h4 ² (0.28) depth: 15/23 00:00:06 996kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 Kd7 5.a5 h4 ² (0.47) depth: 16/23 00:00:11 1719kN 1.c4-- = (0.16) depth: 17/24 00:00:16 2520kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 Kd7 5.a5 h4 = (0.06) depth: 17/27 00:00:18 2955kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 Kd7 5.a5 h4 = (0.03) depth: 18/29 00:00:32 5253kN 1.c4 h5 2.b4 g5 3.a4 f5 4.Ke2 g4 5.a5 Kd8 = (-0.03) depth: 19/31 00:00:59 10014kN 1.c4 h5 2.b4 g5 3.a4 h4 4.Ke2 Kd7 5.a5 g4 = (0.00) depth: 20/33 00:01:51 19128kN 1.c4 h5 2.b4 g5 3.a4 h4 4.Ke2 Kd7 5.a5 g4 = (0.00) depth: 21/36 00:04:38 49730kN, tb=58
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