Author: William Penn
Date: 05:09:52 02/03/04
Go up one level in this thread
On February 03, 2004 at 04:32:35, Matthias Gemuh wrote: > > >Zied Haddad seems to be unable to connect to CCC from Tunesia. >He seeks to know whether others have encountered a Shredder 8 problem he has: > >after playing many games in a row without clearing hash tables, Shredder 8 >starts messing and missing even mate in 1, till hash tables are cleared. > >[http://f50.parsimony.net/forum200321/messages/5855.htm] > >/Matthias >(message posted on Zied's request) You may be right. I'm not sure yet, but I will start clearing the hash tables before each analysis and see if it makes a difference. Note that I only run Shredder 8 in infinite analysis mode for a long time to analyze positions. Here's an example where the analysis ran for over 6 hours. The last line it burped out (after 05:35:47) starts playing "giveaway chess" fairly soon. I'm using an XP 2400+ processor, 1GB RAM, 512MB hash, Shredder 8 in the native CB GUI with all default settings. [D] 3r2k1/5pp1/2RP3p/pp1p4/8/4P3/PP4PP/6K1 w - - 0 1 Analysis by Shredder 8: 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 f5 29.Kf3 Kf7 30.Kf4 Ke6 31.d7+ Kxd7 32.Rb6 b4 33.Rg6 h5 34.Rxg7+ Ke8 ² (0.52) Depth: 18/18 00:00:00 28.Kf2 b4 29.Ra6 f6 30.a3 bxa3 31.bxa3 Kf7 32.Rxa5 Rxd6 33.Ra7+ Kg6 34.h4 f5 35.Kf3 d4 36.h5+ Kxh5 37.exd4 Rxd4 38.Rxg7 ± (0.73) Depth: 18/31 00:00:08 3430kN 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kg6 31.Rc5 Rxd6 32.Rxb5 a4 33.Kd3 Kf7 34.Rb7+ Kg6 35.Rb4 Ra6 36.Rb5 a3 37.b4 Ra4 38.Kd4 ± (0.91) Depth: 19/34 00:00:29 12077kN 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kg6 31.Rc5 Rxd6 32.Rxb5 a4 33.Kd3 h5 34.g3 f5 35.Kd4 Kf6 36.Rxd5 Rb6 37.Kc3 g5 38.Rd4 ± (0.98) Depth: 20/36 00:00:45 17838kN, tb=1 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kf8 31.Rc5 Rxd6 32.Rxb5 a4 33.Kd3 Ke7 34.Rb4 Ra6 35.Rb7+ Ke6 36.Rxg7 Rb6 37.Kc3 Rc6+ 38.Kb4 Rc4+ 39.Kb5 Rc2 40.Kxa4 Rxb2 41.a3 ± (0.99) Depth: 21/35 00:01:05 26108kN, tb=2 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kg6 31.d7 Kf7 32.Kd3 Ke6 33.Kd4 b4 34.Ra7 Rxd7 35.Rxd7 ± (0.96) Depth: 22/40 00:01:47 43375kN, tb=7 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kg6 31.Rc5 Rxd6 32.Rxb5 a4 33.Kd3 Kf7 34.Rb4 Ra6 35.Rb7+ Ke6 36.Rxg7 Ke5 ± (0.99) Depth: 23/42 00:02:40 64777kN, tb=49 28.Kf2 b4 29.Kf3 f6 30.e4 dxe4+ 31.Kxe4 Re8+ 32.Kd4 Re2 33.Rc8+ Kf7 34.Kd5 Rd2+ 35.Kc6 Rc2+ 36.Kd7 Rxg2 37.Rc7 f5 38.Kc8+ Ke6 39.d7 Rxb2 40.d8Q a4 ± (0.98) Depth: 24/57 00:06:28 155789kN, tb=789 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kf8 31.Rc5 Rxd6 32.Rxb5 a4 33.Kd3 g6 34.Rb4 Ra6 35.Kd4 Ra5 36.Rb7 f5 ± (0.98) Depth: 25/58 00:12:20 295963kN, tb=3828 28.Kf2 f6 29.Ke2 Kf7 30.Rc7+ Kf8 31.Rc5 Rxd6 32.Rxb5 a4 33.Kd3 g6 34.Rb4 Ra6 35.Kd4 Ra5 36.Rb7 f5 37.h3 Kg8 38.Ke5 h5 ± (0.92) Depth: 26/48 00:19:07 460372kN, tb=7670 28.Kf2 f5 29.b3 a4 30.Kf3 Kf7 31.Kf4 Ke6 32.d7+ Kxd7 33.Rg6 Re8 34.bxa4 Re4+ 35.Kxf5 Rxa4 36.Ke5 Rxa2 37.Kxd5 Ke7 38.Rxg7+ Kf6 39.Rg3 Rc2 ± (0.77) Depth: 27/53 00:51:14 1214622kN, tb=34388 28.Kf2 f5 29.b3 a4 30.b4 a3 31.Rb6 Kf7 32.Rxb5 Rxd6 33.Rb7+ Kf6 34.b5 d4 35.Ra7 d3 36.Ke1 d2+ 37.Kd1 Rd5 38.Ra6+ Ke5 39.b6 ± (0.86) Depth: 28/54 01:44:11 2437590kN, tb=84220 28.Kf2 f5 29.b3 a4 30.b4 a3 31.Rb6 Kf7 32.Rxb5 Rxd6 33.Rb7+ Kf6 34.b5 d4 35.Ra7 d3 36.Ke1 d2+ 37.Kd1 Rd5 38.Ra6+ Ke5 39.b6 ± (0.75) Depth: 29/59 02:32:46 3587439kN, tb=134462 28.Kf2 f5 29.Ke1 a4 30.Ke2 Kf7 31.g4 fxg4 32.Rc4 dxc4 33.b3 axb3 34.Kd2 bxa2 35.d7 a1Q 36.h3 gxh3 37.Ke2 ² (0.67) Depth: 30/57 05:35:47 7919282kN, tb=472425 WP
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